Windows 7 affects laptop battery life

One of the drawbacks of Windows Vista is that it is difficult to maintain the battery consumption of the notebook. Although Windows 7 has improved productivity through the fix, it seems that the battery is not taken seriously. More and more reports recently show that Windows 7 has severely shortened battery life. Currently Microsoft has announced an investigation into the issue.

Here are some sorts of Windows 7 battery issues:

On January 12, Microsoft issued a statement on the impact of Windows 7 on battery events, and launched an investigation.

In October, before the release of Windows7RTM, the problem of battery life decline has already appeared.

On January 1 this year, netizens began to respond to this question in the TechNet forum. Some users (net name dabruton) said that he upgraded a HP notebook he bought in 2007 from Windows Vista to Windows 7, but the battery life has changed from two hours to just half an hour, and Microsoft has repeatedly promoted the new system can greatly extend battery life. The user said that powercfg's energy report shows that the Windows 7 full-charge state is 40% lower than the normal full charge.

It is reported that the root of the problem is that Windows 7 has added a new battery detection tool to determine whether the battery needs to be replaced and notify the user, but in some cases, although the battery is as usual, the system will judge the error and think The battery is exhausted and the user is advised to replace it immediately, sometimes even shutting down the system. Some users reluctantly said that he did change the old battery after seeing the prompt, but the new battery continued to receive the same warning.

Some people say that this problem existed in the Windows 7 Beta test phase, but some people say it is only in the official version of RTM. One user posted: "My battery life has been normal before installing RTM version of Windows 7. I can hold it for almost three hours in all the Beta and RC versions I installed. Now, it only takes about twenty minutes. Windows 7 shut down my laptop. This happened when I switched from RC to RTM. Needless to say, I am as upset as everyone else."

Microsoft said in a statement This problem is known and pointed out that it is related to the way Windows 7 reads the system firmware, and it exists on different models of notebooks from many manufacturers. Microsoft said: "We are investigating this issue with our hardware partners. Windows 7 uses firmware information to determine if the battery needs to be replaced. We are working with our partners to find the source of the problem and get the information and guidance we need (TechNet) The forum is updated."

Microsoft also claims that sometimes this new tool is working fine. In other words, if it prompts you to replace the battery, it is possible that your battery is really going to hang, but obviously The chance of false positives is too high.

We can only hold onlookers about this issue, and whether it will cause software damage caused by software is still unclear.