Windows 10: Computer won't start up after Windows 10 factory reset

We just got an almost never used Presario CQ56 from a guy for doing some housework. I noticed it had some malware on it so I factory reset it. It got done factory resetting and it just went black. I held down the power button and it didn't do anything. What should I do?

:)

 

Lumia 830 main camera won`t start

After windows 10 update my lumia 830 camera won`t start . It says Camera won`t start . I tried other camera apps but camera still not work . Front camera working plz help me . I did hard reset , soft reset , downgraded to 8.1 but problem still persist

 

Windows 10 factory reset

Hi Charlie,

We can see here that you are having issues with doing a factory reset on your Windows 10. There are several factors
why you get the said error and that's what we are going to figure out. To isolate this concern, may we know the following:

• Any changes made on the computer prior to this concern?
• What troubleshooting steps have you tried so far?
  
• May we know the reason why you want to perform a factory reset?
• Did you experience any issues on the computer before you tried performing a factory reset?
  

 

Windows 10 won´t start any program as Administrator

Hello. I´m having this issue since installed one of the latest Windows 10 system updates.

When I try to open any program that requires Administrator confirmation (that screen with the Yes/No question), this dialog won´t appear anymore. The screen background stays darkened and nothing happens.

1. Using Windows 10 Home (x64)
2. My microsoft user account is properly checked
3. I´m the administrator of the PC
4. Already tried do create another administrator user account - same problem, no success
5. Cannot start any program/service that requires administrator authorization (not even regedit)

Please help!