Fast Solution to Error: after upgrading Windows 8 to Windows 8.1, it has a black screen when the system on sleeping

after upgrading Windows 8 to Windows 8.1, it has a black screen when the system on sleeping

it had happened three times after upgrading, one directly after completing the upgrade and the second after one hour and the third next day..
now this problem has been disappeared but there are another problem one is the activation of bluetooth, very very
slow to be ready for active and could not send any files or receive.
the second one is the fan works loudly even if the laptop is cool.
this happened only after upgrading

Solutions to the Problem after upgrading Windows 8 to Windows 8.1, it has a black screen when the system on sleeping

Download SmartPCFixer to Fix It (Free)

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Another Safe way to Fix the Problem: after upgrading Windows 8 to Windows 8.1, it has a black screen when the system on sleeping:

How to Fix after upgrading Windows 8 to Windows 8.1, it has a black screen when the system on sleeping with SmartPCFixer?

1. Click the button to download Error Fixer . Install it on your system.  Open it, and it will perform a scan for your system. The junk files will be shown in the list.

2. After the scan is finished, you can see the errors and problems need to be fixed. Click Fix All.

3. When the Fixing part is finished, your computer has been speeded up and the errors have been removed

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