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Still not working. Drains about 30% in 3 hours

Ok in the device manager it was possible to uninstall the HDAUDIO driver. I now put the sp1 in standby and I will test how the battery drains. Edit: Now I see your screenshot. Yes I have the same inputs

But the driver wont show in the software listing

It gives me some errors but only 1 error is the reason that it doesnt go into standby. The driver HDAUDIO/FUNC01....... High Definition Audio Device

Ok I started cmd as admin butit says that it is not supported on this computer, the tool can not be executed

Hi there, is anyone else having the problem that the surface pro ( 128gb, 4gb ram ) with windows 10 has a strong battery drain in standby? The display is black but still it drains about 10% in 1 hour. Also did a full reset and only installed office and firefox, but still it drains the...