Solution for shortening battery life after upgrading Win8.1 system

If you upgrade your Windows RT version of the Surface from the Windows RT 8.1 Preview system to the Windows RT 8.1 system, you will definitely notice a significant reduction in battery life. The following is a small series to introduce the solution for everyone.

1. During the update process, because the wireless adapter power policy has not been transferred, the electric hospital measurement will return to the default value, which greatly increases the power consumption during use and standby.

2. We can restore the wireless adapter power policy to the correct settings to solve this problem, first open the administrator command prompt:

— swipe from the right edge of the screen to the left, Then click "Search" (If you use the mouse, point to the bottom right corner of the screen, move the mouse pointer up and click "Search")

— then enter " Command prompt "

— Touch and hold or right-click "command prompt" to bring up the context menu, click or click "run as administrator"

— In the "User Account Control" dialog box, click or click "Yes"

— Then at "Administrator: Command prompt", enter " Powercfg -setdcvalueindex SCHEME_CURRENT 19cbb8fa-5279-450e-9fac-8a3d5fedd0c1 12bbebe6-58d6-4636-95bb-3217ef867c1a 3"

— Finally enter "powercfg -setactive scheme_current"