by Watzman - http://forums.cnet.com/
Laptop Lithium Ion batteries are very expensive (quite a few of them are over (WAY over, in a few cases) $200). They CAN last 10 years (in fact I have some 1995 Toshiba batteries that are still nearly as good as new), but they can also be destroyed in less than 6 months. As an engineer who has both worked for laptop manufacturers and who services laptops, here is what I can tell you:
The most important rule of getting good life from a battery is this: If you are not traveling, if you are stationary and are going to be plugged into a wall outlet for a day or two or perhaps essentially all of the time, take the battery out of the computer entirely and store it in a cool, dry place (some people will recommend a refrigerator, but that is not necessary, will probably not make a difference that you will really notice, and can damage the battery if the temperature gets too cold (freezing)).
It's not clear why this is necessary, and on some models it may not be necessary (your post, however, suggests that it IS necessary on your model). However, there is OVERWHELMING anecdotal evidence that this is the single most important thing that you can do to have your battery last years and years, for the times when you really do need it, when you are traveling and want to use the laptop in a car, on a plane or in various transient locations.
The two likely culprits here are overcharging and heat.
While in theory the charging circuits should shut down [COMPLETELY] when the battery is fully charged, there is evidence that in many laptops they don't; they continue charging the battery continuously , albeit in a "trickle charge" mode. This may sound good, but in practice it can damage the battery.
Secondly, it is a well known fact that Lithium Ion batteries are terribly sensitive to permanent damage by exposure to elevated temperatures (and "elevated" in this case starts in the range of around or just over 100 degrees F (about 40C)).
With regard to elevated temperatures, storage in a turned-on laptop is problematic for two reasons. First, there is a lot of heat in the laptop (from the various laptop components: CPU, hard drive, power supply, etc.), and the battery is, to varying degrees, exposed to this heat (note, however, that battery exposure to this heat varies by model depending on the thermal design and placement of the battery relative to other heat generating components). Secondly, if the charging circuits do not shut down COMPLETELY, charging itself (even "trickle charging") generates heat from directly within the battery itself which is harmful over time.
Now, a few more comments:
First, it's probably not a good idea to remove the battery while you are staying in a hotel for a few days, even if you won't need it. The risk of forgetting the battery in the hotel room when you check out is significant (you can mitigate this by leaving the battery in your laptop bag, but ask anyone who uses PC Cards about "lost dongle cables").
Second, notwithstanding the general advice to remove a battery that is not needed and not being used, the battery needs to be exercised 2 to 4 times a year. So, once in a while, put it back in the laptop, draw it down to about 25% (NO LOWER!!) and then charge it back up to about 60% (or 100% and then back down to 60%; Lithium batteries store better with a less than full charge although in my personal experience I have not found the difference to really matter very much).
Third, if your laptop is really used as a compact desktop at home or at work and in fact doesn't travel much, removing the battery robs you of it's function as a "un interruptible power supply". Solution: Buy a [real] UPS. For a laptop, you only need a small one (300 to 350VA), these can be found for $40 or less (sometimes even "free after rebate"), and a UPS is a lot cheaper than using a $200+ lithium battery as a UPS but destroying it over a period of 6 to 24 months in the process.
Also note that Lithium batteries have a finite and limited life in terms of the number of charge/discharge cycles, calendar time not withstanding. Although this varies by battery model, it's in the low-to-mid hundreds (say 300 to 600 cycles as a typical range). If you really are using your battery while traveling, charging and discharging it on a daily basis, this fact will "get you" no matter what you do. But, more commonly, people find that they have destroyed their battery without ever really using it, by leaving it in the laptop while the laptop was plugged in continuously. And we have already covered the solution to that problem.
One last comment, given the price of laptop batteries, it's worth noting that SOME extended warranties cover the batteries. If you are really going to be using the battery heavily (see the previous paragraph), this may be worth taking into consideration when the colored shirt guy at Buy More offers you an extended warranty at the time of the laptop purchase. Find out (IN WRITING!!) if the battery is covered, and if your use pattern is such that you will probably be going through more than the initial battery over the course of the extended warranty, maybe you are in one of those situations in which an extended warranty really does make sense.
Friday, March 20, 2009
Sunday, February 22, 2009
New tool in the war, Malwarebytes' Anti-Malware.
Malwarebytes' Anti-Malware is considered to be the next step in the detection and removal of malware [Trojans]. In this product they have compiled a number of new technologies that are designed to quickly detect, destroy, and prevent malware. Malwarebytes' Anti-Malware can detect and remove malware that even the most well known anti-virus and anti-malware applications fail to detect. Malwarebytes' Anti-Malware monitors every process and stops malicious processes before they even start. The Realtime Protection Module uses our advanced heuristic scanning technology which monitors your system to keep it safe and secure. In addition, they have implemented a threats center which will allow you to keep up to date with the latest malware threats.
Get this from www.malwarebytes.org
Malwarebytes' Anti-Malware is considered to be the next step in the detection and removal of malware [Trojans]. In this product they have compiled a number of new technologies that are designed to quickly detect, destroy, and prevent malware. Malwarebytes' Anti-Malware can detect and remove malware that even the most well known anti-virus and anti-malware applications fail to detect. Malwarebytes' Anti-Malware monitors every process and stops malicious processes before they even start. The Realtime Protection Module uses our advanced heuristic scanning technology which monitors your system to keep it safe and secure. In addition, they have implemented a threats center which will allow you to keep up to date with the latest malware threats.
Get this from www.malwarebytes.org
Thursday, November 13, 2008
How to maintain XP after Microsoft ends support
By Stuart J. Johnston
Microsoft CEO Steve Ballmer said recently that it's OK with him if you want to stick with Windows XP until Windows 7 is available late next year.
XP lovers may still be able to buy a new PC with that operating system installed for another year or so, but unfortunately, Microsoft plans to end most free support for the OS within months.
On that date — Apr. 14, 2009 — millions of PC users, some of whom bought their systems less than a year earlier, will be left in the lurch. These users will have to pay Microsoft for Windows XP support, although downloading critical security patches is expected to remain free of charge.
The end of support is planned despite the fact that consumers can still buy a new PC that runs XP rather than Vista, which was released nearly two years ago. It's ironic that no less a personage than Microsoft chief Ballmer tells users that staying with XP until Windows 7 ships late next year is a viable option.
What's a poor Windows XP user to do?
Third-party vendors pledge XP compatibility. Ballmer has said repeatedly over the past 10 to 15 years that the stiffest competition a new version of Windows confronts in the marketplace is the previous version of Windows. If the previous version is "good enough," then a lot of people won't buy the upgrade. XP just may prove Ballmer right.
According to a study by Gartner, there will be more than 1 billion computers in use worldwide by the end of 2008. The vast majority of them run Windows XP.
In fact, according to an analysis by Web analytics firm Net Applications, some 68 percent of the client computers in use around the world use XP. The OS's closest challenger — Vista — represents just over 19 percent of the worldwide PC market. If these stats are accurate, there are nearly 700 million copies of XP on the planet.
While Vista has been picking up steam in recent months, it has a long way to go to catch up with its older, more mature sibling. Even if Microsoft redoubles its efforts to market Vista, it's unlikely the newer version could pass XP in installed numbers by late 2009, which is when Microsoft officials hint that Windows 7 will be available.
Anyone who uses XP — whether on a new machine or an early-2000s model — has to wonder whether new hardware and software will continue to support the old OS.
The answer is a qualified "yes."
XP's huge installed base helps to ensure that hardware and software companies are continuing to support their existing XP users while also making sure their new products will work with the OS. Every one of several third-party hardware and software firms I checked with claims its new products will be compatible with both Vista and XP.
For now, anyway, losing the support of third-party vendors is far from the biggest threat facing anyone who sticks with XP. The bigger problem is Microsoft's impending free-support cutoff date for the OS.
XP's support has been extended once before. Microsoft's policy is to support each version of its operating system for 10 years. For the first five years, users get "mainstream" support, which combines free help and fee-based services. This is in addition to the standard patches and hotfixes that Microsoft periodically releases.
The second five-year period constitutes "extended" support. During this time, users must pay for support, aside from critical patches that continue to be offered by the company for free.
XP will reach the end of mainstream support on Apr. 14, 2009, despite the fact that Service Pack 3 for XP was released just last spring. (XP first shipped in late 2001, so the end of its mainstream support is coming more than two years later than is typical — a testament to XP's popularity.)
After April 2009, XP moves into the extended-support period, which is expected to last through Apr. 8, 2014.
Under extended support, if you encounter problems installing a security patch or other critical fix, tech support will help you free of charge. Any other help from Microsoft tech support, however, will be on a pay-per-incident basis. Microsoft currently charges $59 per incident for help with operating-system problems.
If you bought a new PC with XP preinstalled, it's important to note that you must contact your PC maker for all support. Microsoft has assembled a list of phone numbers and support sites for major PC vendors.
The list can be found at http://support.microsoft.com/gp/oemphone
Even though Microsoft has cut off retail sales of XP, the company will continue to allow PC vendors to sell XP Professional on new systems at least through the end of January 2009.
Today, that's usually done by opting for the vendor's "downgrade" license, which lets the buyer choose between Vista and XP Pro.
For example, Dell Computer says it will sell systems with XP as a downgrade option through 2009 and possibly longer.
There are plenty of XP resources out there Of course, you aren't stuck with Microsoft when it comes to your XP support options. If you're looking for an XP device driver, and you're not having much luck with the vendors' sites, try browsing through the posts at various PC community forums.
Forums are great places to post questions and (hopefully) receive answers from other users who have experienced the same problems and found solutions. Microsoft's XP newsgroups are a good place to start.
Other useful XP support sites include the TechArena community, BoardReader, and AllExperts.
You'll find all types of XP support from the members of PC user groups, many of which offer live, in-person meetings where participants exchange tips and solutions. Listings for Microsoft user groups are available at the Microsoft Mindshare site.
These are by no means all the support options available to XP users, but they provide a starting point to help you keep XP alive and well until something better comes along — whether another flavor of Windows or something completely different.
Stuart Johnston is associate editor of WindowsSecrets.com. He has written about technology for InfoWorld, Computerworld, InformationWeek, and InternetNews.com.
Microsoft CEO Steve Ballmer said recently that it's OK with him if you want to stick with Windows XP until Windows 7 is available late next year.
XP lovers may still be able to buy a new PC with that operating system installed for another year or so, but unfortunately, Microsoft plans to end most free support for the OS within months.
On that date — Apr. 14, 2009 — millions of PC users, some of whom bought their systems less than a year earlier, will be left in the lurch. These users will have to pay Microsoft for Windows XP support, although downloading critical security patches is expected to remain free of charge.
The end of support is planned despite the fact that consumers can still buy a new PC that runs XP rather than Vista, which was released nearly two years ago. It's ironic that no less a personage than Microsoft chief Ballmer tells users that staying with XP until Windows 7 ships late next year is a viable option.
What's a poor Windows XP user to do?
Third-party vendors pledge XP compatibility. Ballmer has said repeatedly over the past 10 to 15 years that the stiffest competition a new version of Windows confronts in the marketplace is the previous version of Windows. If the previous version is "good enough," then a lot of people won't buy the upgrade. XP just may prove Ballmer right.
According to a study by Gartner, there will be more than 1 billion computers in use worldwide by the end of 2008. The vast majority of them run Windows XP.
In fact, according to an analysis by Web analytics firm Net Applications, some 68 percent of the client computers in use around the world use XP. The OS's closest challenger — Vista — represents just over 19 percent of the worldwide PC market. If these stats are accurate, there are nearly 700 million copies of XP on the planet.
While Vista has been picking up steam in recent months, it has a long way to go to catch up with its older, more mature sibling. Even if Microsoft redoubles its efforts to market Vista, it's unlikely the newer version could pass XP in installed numbers by late 2009, which is when Microsoft officials hint that Windows 7 will be available.
Anyone who uses XP — whether on a new machine or an early-2000s model — has to wonder whether new hardware and software will continue to support the old OS.
The answer is a qualified "yes."
XP's huge installed base helps to ensure that hardware and software companies are continuing to support their existing XP users while also making sure their new products will work with the OS. Every one of several third-party hardware and software firms I checked with claims its new products will be compatible with both Vista and XP.
For now, anyway, losing the support of third-party vendors is far from the biggest threat facing anyone who sticks with XP. The bigger problem is Microsoft's impending free-support cutoff date for the OS.
XP's support has been extended once before. Microsoft's policy is to support each version of its operating system for 10 years. For the first five years, users get "mainstream" support, which combines free help and fee-based services. This is in addition to the standard patches and hotfixes that Microsoft periodically releases.
The second five-year period constitutes "extended" support. During this time, users must pay for support, aside from critical patches that continue to be offered by the company for free.
XP will reach the end of mainstream support on Apr. 14, 2009, despite the fact that Service Pack 3 for XP was released just last spring. (XP first shipped in late 2001, so the end of its mainstream support is coming more than two years later than is typical — a testament to XP's popularity.)
After April 2009, XP moves into the extended-support period, which is expected to last through Apr. 8, 2014.
Under extended support, if you encounter problems installing a security patch or other critical fix, tech support will help you free of charge. Any other help from Microsoft tech support, however, will be on a pay-per-incident basis. Microsoft currently charges $59 per incident for help with operating-system problems.
If you bought a new PC with XP preinstalled, it's important to note that you must contact your PC maker for all support. Microsoft has assembled a list of phone numbers and support sites for major PC vendors.
The list can be found at http://support.microsoft.com/gp/oemphone
Even though Microsoft has cut off retail sales of XP, the company will continue to allow PC vendors to sell XP Professional on new systems at least through the end of January 2009.
Today, that's usually done by opting for the vendor's "downgrade" license, which lets the buyer choose between Vista and XP Pro.
For example, Dell Computer says it will sell systems with XP as a downgrade option through 2009 and possibly longer.
There are plenty of XP resources out there Of course, you aren't stuck with Microsoft when it comes to your XP support options. If you're looking for an XP device driver, and you're not having much luck with the vendors' sites, try browsing through the posts at various PC community forums.
Forums are great places to post questions and (hopefully) receive answers from other users who have experienced the same problems and found solutions. Microsoft's XP newsgroups are a good place to start.
Other useful XP support sites include the TechArena community, BoardReader, and AllExperts.
You'll find all types of XP support from the members of PC user groups, many of which offer live, in-person meetings where participants exchange tips and solutions. Listings for Microsoft user groups are available at the Microsoft Mindshare site.
These are by no means all the support options available to XP users, but they provide a starting point to help you keep XP alive and well until something better comes along — whether another flavor of Windows or something completely different.
Stuart Johnston is associate editor of WindowsSecrets.com. He has written about technology for InfoWorld, Computerworld, InformationWeek, and InternetNews.com.
Tuesday, November 11, 2008
Essential checklist when shopping around for a broadband plan
Here’s our essential checklist of tips and traps when shopping around for a broadband plan.
• Can you get broadband? Most providers’ Web sites allow you to check this.
• How fast is it? The cheapest ADSL plans offer a 256/64Kbps maximum download/upload speed, which is roughly five times the top download speed of a dialup connection. But heavy downloaders will want more than this.
• Get a suitable download limit. Cheap plans with sub-200Mb monthly limits may be OK for occasional Web browsing, but many users will soon bust those limits. So, try to avoid excess download penalty fees. See if the plan has Shaping [ where you are not charged extra, but the speed id droped down to half ], at least with shaping you won’t get hit with a nasty excess bill.
• Watch out for contracts, minimum terms, early termination fees and other hidden charges. To give yourself the option to move to a cheaper or better service when you want, try to stay with a contract that goes for no longer than six/twelve months.
• For the same reason, look for an ADSL provider that supports rapid transfer.
• Read the fineprint. For example, some plans have data limits that include both downloads and uploads. You’ll also find some benefits too, such as some providers with special sites (eg. for downloads and online games) that are not included in the download limit.
• Check the initial one-off costs, such as the connection fee and the cost of the modem.
• A relatively new catch: some new budget plans offer an enticing monthly fee for the length of the contract only, after which it reverts to a higher price. And if you live outside capital cities, check for regional price differences.
• Most ADSL plans assume you’ll do the installation yourself, so check the availability and cost of on-site installation if you need it.
• Check the tech support options and hours. Some budget providers don’t have any phone support.
• Look for extras such as the number of email accounts, Web space on the provider’s computers for your own Web site, free spam and virus protection for your email, a free dialup account for travelling or emergencies.
OK, these tips will help you in deciding which Internet Service Provider to go with.
• Can you get broadband? Most providers’ Web sites allow you to check this.
• How fast is it? The cheapest ADSL plans offer a 256/64Kbps maximum download/upload speed, which is roughly five times the top download speed of a dialup connection. But heavy downloaders will want more than this.
• Get a suitable download limit. Cheap plans with sub-200Mb monthly limits may be OK for occasional Web browsing, but many users will soon bust those limits. So, try to avoid excess download penalty fees. See if the plan has Shaping [ where you are not charged extra, but the speed id droped down to half ], at least with shaping you won’t get hit with a nasty excess bill.
• Watch out for contracts, minimum terms, early termination fees and other hidden charges. To give yourself the option to move to a cheaper or better service when you want, try to stay with a contract that goes for no longer than six/twelve months.
• For the same reason, look for an ADSL provider that supports rapid transfer.
• Read the fineprint. For example, some plans have data limits that include both downloads and uploads. You’ll also find some benefits too, such as some providers with special sites (eg. for downloads and online games) that are not included in the download limit.
• Check the initial one-off costs, such as the connection fee and the cost of the modem.
• A relatively new catch: some new budget plans offer an enticing monthly fee for the length of the contract only, after which it reverts to a higher price. And if you live outside capital cities, check for regional price differences.
• Most ADSL plans assume you’ll do the installation yourself, so check the availability and cost of on-site installation if you need it.
• Check the tech support options and hours. Some budget providers don’t have any phone support.
• Look for extras such as the number of email accounts, Web space on the provider’s computers for your own Web site, free spam and virus protection for your email, a free dialup account for travelling or emergencies.
OK, these tips will help you in deciding which Internet Service Provider to go with.
Sunday, October 5, 2008
Zamzar.com
Zamzar.com online file converter adds browser plugin
Zamzar.com is a free online service that will convert video, audio, and documents. You upload the file, enter your email address, and Zamzar will send you a note when your new file is ready for download.
Well now it looks like Zamzar's got the online video bug, adding support for converting videos from YouTube and a number of other services. You can either enter the URL of the video, or use a new browser plugin to automatically find videos to convert on the page you're visiting.
Zamzar will allow you to convert files from YouTube, Google Video, Myspace, Revver, putFile, Break.com, Apple Trailers, Dailymotion, Metacafe, iFilm, Grouper, and Blip.tv. You can convert files to a variety of formats, including 3GP, FLAC, MP4, and AVI.
Zamzar.com is a free online service that will convert video, audio, and documents. You upload the file, enter your email address, and Zamzar will send you a note when your new file is ready for download.
Well now it looks like Zamzar's got the online video bug, adding support for converting videos from YouTube and a number of other services. You can either enter the URL of the video, or use a new browser plugin to automatically find videos to convert on the page you're visiting.
Zamzar will allow you to convert files from YouTube, Google Video, Myspace, Revver, putFile, Break.com, Apple Trailers, Dailymotion, Metacafe, iFilm, Grouper, and Blip.tv. You can convert files to a variety of formats, including 3GP, FLAC, MP4, and AVI.
Thursday, September 18, 2008
How to recognize spoofed Web site.
Site Spoofing
Some malicious individuals use phishing scams to set up convincing spoofs of legitimate Web sites. They then try to trick you into visiting these Web sites and disclosing personal information, such your credit card number.
Fortunately, there are several steps you can take to help protect yourself from these and other types of attacks.
What is a spoofing attack?
Spoofing attacks are commonly used in conjunction with phishing scams. The spoofed site is usually designed to look like the legitimate site, sometimes using components from the legitimate site. The best way to verify whether you are at a spoofed site is to verify the certificate.
Do not rely on the text in the address bar as an indication that you are at the site you think you are. There are several ways to get the address bar in a browser to display something other than the site you are on.
How to verify a site certificate
Always verify the security certificate issued to a site before submitting any personal information. Before you submit any personal information, ensure that you are indeed on the website you intend to be on.
You should find that the http://www. In the address bar has an S added to the address, like this https://www. This indicates a Secure site.
You should also be checking the yellow lock icon on the status bar.
This symbol signifies that the website uses encryption to help protect any sensitive personal information—credit card number or payment details—that you enter.
Secure site lock icon. If the lock is closed, then the site uses encryption. Double-click the lock icon to display the security certificate for the site. This certificate is proof of the identity for the site.
When you check the certificate, the name following 'Issued to' should match the site you think you are on. If the name differs, you may be on a spoofed site.
If you are not sure whether a certificate is legitimate, do not enter any personal information. Play it safe and leave the Web site.
Also, be cautious about clicking links in e-mail messages or in online ads from retailers you don't recognize or trust. If you have any doubt about a link, do not click it.
Instead, type the Web site address into the address bar of your Web browser, or try to confirm that the link is legitimate.
Remember, if an offer sounds too good to be true, it probably is.
Some malicious individuals use phishing scams to set up convincing spoofs of legitimate Web sites. They then try to trick you into visiting these Web sites and disclosing personal information, such your credit card number.
Fortunately, there are several steps you can take to help protect yourself from these and other types of attacks.
What is a spoofing attack?
Spoofing attacks are commonly used in conjunction with phishing scams. The spoofed site is usually designed to look like the legitimate site, sometimes using components from the legitimate site. The best way to verify whether you are at a spoofed site is to verify the certificate.
Do not rely on the text in the address bar as an indication that you are at the site you think you are. There are several ways to get the address bar in a browser to display something other than the site you are on.
How to verify a site certificate
Always verify the security certificate issued to a site before submitting any personal information. Before you submit any personal information, ensure that you are indeed on the website you intend to be on.
You should find that the http://www. In the address bar has an S added to the address, like this https://www. This indicates a Secure site.
You should also be checking the yellow lock icon on the status bar.
This symbol signifies that the website uses encryption to help protect any sensitive personal information—credit card number or payment details—that you enter.
Secure site lock icon. If the lock is closed, then the site uses encryption. Double-click the lock icon to display the security certificate for the site. This certificate is proof of the identity for the site.
When you check the certificate, the name following 'Issued to' should match the site you think you are on. If the name differs, you may be on a spoofed site.
If you are not sure whether a certificate is legitimate, do not enter any personal information. Play it safe and leave the Web site.
Also, be cautious about clicking links in e-mail messages or in online ads from retailers you don't recognize or trust. If you have any doubt about a link, do not click it.
Instead, type the Web site address into the address bar of your Web browser, or try to confirm that the link is legitimate.
Remember, if an offer sounds too good to be true, it probably is.
Thursday, April 10, 2008
Something new in your fight against the nongs.......
Threatfire
"ThreatFire 3's ability to block installation of malware strictly by identifying bad behaviour is phenomenal. It did a better (and faster) job than Norton AntiBot and even beat out Spy Sweeper, our current Editors' Choice for signature-based anti-spyware. This free tool is an excellent addition to your security arsenal."
- www.pcmag.com, October 2, 2007*
What is ThreatFire?
ThreatFire is zero-day security software designed for the average consumer. ThreatFire protects in real-time against viruses, worms, trojans, spyware, adware, rootkits, keyloggers, and buffer overflows. It is designed to be used alongside your current antivirus to protect you between antivirus updates. Because it is behaviour-based and not signature-based, ThreatFire protects against both known and unknown, or zero-day, threats. It is easy to install, painless to use, and immediately effective against today's computer security threats. And best of all, ThreatFire is free to all home users.
http://www.threatfire.com/Download/
"ThreatFire 3's ability to block installation of malware strictly by identifying bad behaviour is phenomenal. It did a better (and faster) job than Norton AntiBot and even beat out Spy Sweeper, our current Editors' Choice for signature-based anti-spyware. This free tool is an excellent addition to your security arsenal."
- www.pcmag.com, October 2, 2007*
What is ThreatFire?
ThreatFire is zero-day security software designed for the average consumer. ThreatFire protects in real-time against viruses, worms, trojans, spyware, adware, rootkits, keyloggers, and buffer overflows. It is designed to be used alongside your current antivirus to protect you between antivirus updates. Because it is behaviour-based and not signature-based, ThreatFire protects against both known and unknown, or zero-day, threats. It is easy to install, painless to use, and immediately effective against today's computer security threats. And best of all, ThreatFire is free to all home users.
http://www.threatfire.com/Download/
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