Windows 10: My pc won’t start after a update

I was using my computer just normal and i notice a little yellow dot in the southdown option i click in update and restart and it go to 100% it restart got to the mis screen then to the windows screen and the little dot circle don’t show and it stuck there what should i do 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

 

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!

 

N97 Bluetooth disappeared, won´t start again

Today without any reason the Bluetooth disappeared, and it won´t start anymore from the connections menu. Any clue where to start looking. Software V20, and no new update available.