Windows 8.1 System Sleep can't wake up what's going on?
After Windows 8.1 was Microsoft's launch of Windows 8 in October 2012, Microsoft started to develop a Windows 8 update package. In the project codenamed "Blue", Microsoft will standardize the operating system upgrades to provide users with a more conventional upgrade. Many friends are accustomed to Windows XP, now use this new system will inevitably have some minor problems.
Next, let's take a look at the system fault resolution.
Failure phenomenon:
Upgrading Windows 8.1 does not manually, automatically sleep, or sleep does not wake up, turn off mixed sleep.
Solution:
Control Panel---Hardware and sound---Power options---Balance the right change plan settings (or select the mode changes you choose)---Change the Advanced power settings---Sleep---allow mixed sleep---close---save.