My podcast co-host Jason Coombes noticed since going from the Windows 8.1 Preview to Windows 8.1 RTM the battery performance of his Surface RT has dropped, particularly in connected standby. It turns out Jason wasn’t going mad and that there is an issue with the Surface RT after the upgrade, the good news is that Microsoft have fix. The issue is caused by the wireless power policy not being migrated during the upgrade and the steps below will fix the problem.
I ran it on my Surface RT so we will see if the standby performance increases. Thanks to Jason for the link.
Surface RT only: Battery issue when updating from Windows RT 8.1 Preview
If you updated Surface RT from Windows RT 8.1 Preview to Windows RT 8.1, you may notice a decrease in battery life. During the update, the wireless adapter power policy isn’t migrated. Instead, the power policy is set to a default value that consumes more power both during use and in the connected standby state.
To restore the wireless adapter power policy to the correct settings, open an administrator command prompt:
Swipe in from the right edge of the screen, and then tap Search.
(If you’re using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
Step 1:
Step 2:
In the search box, enter command prompt.
Step 3:
Touch and hold (or right-click) Command Promptto bring up the context menu. Tap or click Run as administrator.
Step 4:
On the User Account Control dialog box, tap or click Yes.
Step 5:
At the Administrator: Command Prompt, enter the following: powercfg -setdcvalueindex SCHEME_CURRENT 19cbb8fa-5279-450e-9fac-8a3d5fedd0c1 12bbebe6-58d6-4636-95bb-3217ef867c1a 3
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Fix: #Microsoft post solution for #Surface RT reduced #battery life issues since the #Windows8.1 upgrade http://t.co/WocgT2tEm8 #SurfaceRT
RT @isdixon: Microsoft post solution for Surface RT battery issues since the Windows 8.1 upgrade: http://t.co/ioxXssVXMK #surface #microso…
RT @isdixon: Microsoft post solution for Surface RT battery issues since the Windows 8.1 upgrade: http://t.co/ioxXssVXMK #surface #microso…