Hey there. I very recently let windows update itself. Immediately after this update I was unable to launch the on-screen keyboard (or any other programs from the ease of access folder for that matter) receiving an error stating "C:\Windows\system32\osk.exe, a referral was returned from the server."
I have tried using system restore to bring the computer back to just before I had updated, but received a message stating that certain changes could not be made and that it was likely caused by an anti-virus. I then disabled all forms of anti-virus software on the computer and attempted another system restore resulting in the same failure and same error message. I read a post somewhere that this error was due to the "cryptographic service" not running, then followed a tutorial on restarting that. Thus far nothing has worked. Any and all help would be appreciated.