Windows 10: My Windows 10 computer that I have used for a year, locks by itself and won’t start up again

I have used this HP computer for a year now, and it works fine. Recently, while I was playing a game, it went to a blue screen like you see with shutting down the computer, but with “Shutting down…” replaced with “Locking…” This screen flashed for a second before the screen turned black, and the computer shut off. I haven’t been able to turn it back on using the power button, and i’m concerned because of all my life’s work was put on there. Help please!

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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!

 

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

 

My caps lock won t turn off

I'm typing a letter in word, it was fine then started using all caps it won t turn them the usual way