Solve Win8.1 to make Surface consume too fast

How to solve Win8.1 to make SurfaceRT consume too fast? This problem has stumped many SurfaceRT users, since the release of Windows8.1 beta, many users can't wait Trial, because the test version will have such problems, because SurfaceRT has encountered anecdotes, Win8.1 makes SurfaceRT consume too fast, how to solve? Microsoft staff to move: open Bluetooth can solve SurfaceRT power consumption too fast problem.
How to solve Win8.1 so that the Surface consumes too much power to turn on Bluetooth can solve

How to solve Win8.1 to make SurfaceRT consume too fast? This problem has stumped many SurfaceRT users since Windows8. After the release of the beta version, many users can't wait to try it out, because the beta version will have such problems, because SurfaceRT will encounter anecdotes, Win8.1 makes SurfaceRT consume too much power, how to solve it? Microsoft workman trick: open Bluetooth can solve the problem of excessive power consumption of SurfaceRT.

Turning on Bluetooth can really solve the problem of using SurfaceRT too fast? Fortunately, the tested SurfaceRT has said that it can solve the problem. When I got here, Xiaobian wanted to ask, why does Win8.1 make SurfaceRT consume too much power? I believe this is also a question for many netizens.

For this problem, Microsoft's staff of course also give answers, according to Microsoft personnel, Win8.1 causes SurfaceRT to consume too fast and the reason why Bluetooth works in WIN8.1, in networking In standby mode (such as screen off), a specific UART controller will prevent the CPU from entering a low power state. This UART is connected via Bluetooth. If you turn off Bluetooth in your PC settings, it will cause the system to continue to consume power.

So, turning on Bluetooth can solve the problem that the SurfaceRT consumes too much power.

OK, let's review the development history of this issue:

Not long ago, the Windows 8.1 preview version has been open for some time, and some users who love early adopters are on their own SurfaceRT tablets. This latest system is installed on board. Because it is a test version, it is inevitable to encounter problems, so some people have reported that after the SurfaceRT upgrade to Windows 8.1, the battery consumes too much power.

Soon in the Microsoft Support Forum, there are also users who respond to the phenomenon of SurfaceRT. After installing Windows 8.1 Preview, their tablet will lose 2%-3% of power per hour even in standby mode. One driver that consumes so much power is the Microsoft UARTV2Driver (_SB.UAR3).

Then Microsoft technical support staff suggested that turning on the SurfaceRT Bluetooth can solve this problem. The user then accepted the suggestion to enable the wireless Bluetooth of the tablet, and the problem of the battery being too fast was solved.

Subsequently, Microsoft explained the reason, because in the case of connected standby (such as screen off), Powerfg/sleepstudy will report to the system all the problems preventing the CPU from entering the low power state, while a specific UART controller Will prevent the CPU from entering a low power state, this UART is connected via Bluetooth. If you turn off Bluetooth in your PC settings, it will cause the system to continue to consume power.

Microsoft is aware of this issue and will completely resolve it in the Windows 8.1RTM release.

[Summary of small series]

OK, I know how to solve the phenomenon that Win8.1 makes SurfaceRT consume too much power. The most effective and simple way is to turn on Bluetooth. In fact, there are many problems in the beta or preview version of all software or systems. For security reasons, we recommend that you wait for the official version to be released. Of course, students who are eager to eat hot tofu can also take risks, but they must do a good job. The problem is prepared.