I had the same problem, and I solved in this way:
Control Panel -> System and Security-> File History -> Turn off
Settings -> Update & Security -> Backup -> More options -> Stop using this drive...
Type: Posts; User: mila parker
I had the same problem, and I solved in this way:
Control Panel -> System and Security-> File History -> Turn off
Settings -> Update & Security -> Backup -> More options -> Stop using this drive...