Same issue as everyone else, only I noticed it was apparent when On-Screen Keyboard failed to load up, as well as none of the troubleshooting options for the internet worked; the On-Screen Keyboard claimed "a referral was returned from the server", but
the troubleshooting options outright told me they failed. Also tried to System Restore but it told me it could only partially do it due to access to a file being restricted.
I figure it had to be related to the update I had just recently performed, so I took the advice and uninstalled it and restarted. Was a bit nervy for a couple of minutes because it caused the start menu icons to become unselectable, but it looks like everything's
OK now because the on-screen keyboard popped back up without a fuss, and to be fair it is a little on the old side. Gonna restart a second time and hope for the best.
Phew. Not used to these sorts of things. Thanks a bunch for the help, though.