When I start Windows 10 i received the message: "
"Your PC couldn't start properly.
A required device isnt connected or cant be accessed.
Error code: 0xc0000225
You'll need to use recovery tools. If you don't have any install media (like a disc or USB device), contact your PC administrator or PC/device manufacturer."
I believe this started due to the machine not shutdown correctly. I can start in safe mode and no recovery points are disabled.
Any ideas on how i can get this machine back?
Best Answer
Try this :
Press and hold F2 key(depend on your PC), then power on the machine. You will be directed to BIOS.
Look for Security tab inside bios and navigate to Secure Boot. Then Disable it.
That’s all, you are able to boot from DVD drive, and obliviously you can repair your Windows 8 PC with disk.
Taken Source :
http://www.smartpctricks.com/2013/09/solved-error-code-0xc000000f-windows-8-a-required-device-isnt-connected-or-cant-be-accessed.html