Windows 10: After Windows 10 update, PC won't start

I have a custom built PC running Windows 10 Professional 64-bit Version 2004 (build 19041.630) - last build before the update. Until this latest update from Microsoft, I have not had any problems.
My PC has a 3.40 GHz Intel Core i5-3570K cpu, 32 GB memory, 2 450GB SSD drives, 2 1TB hard drives, and a Gigabyte Z77M-D3H-MVP motherboard.
After the update, the PC won't start; it runs in a continuous loop that stop on a screen that says Gigabyte - UEFI DualBIOS which is blank. I've tried to boot from a usb drive and a CD with no success.
This is my main PC and I need help on recovering it.

:)

 

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

 

Skype won´t wok in 17063

Ok...

After update my Windows 10 to 17063.1000 build, skype won´t work...

It open, but if I Start my conversasion with camera, file share or screen share, it crash...

If I try to uninstall anda install again, I give an error...

Any workaround to solve this issue??

*Mad*Mad*Mad*Mad