I had that half a dozen updates ago (TBH, it might even have been Windows 7, I mean ....), I created the C:\WINDOWS\system32\config\systemprofile\Desktop folder in question, waited a few seconds, then HARD reboot, and all was good ... memory vanes, but I think I could access task manager (taskmgr.exe) and from there get to elevated cmd.exe to create it ... then again ... if they re-implemented this "feature" it might actually be by design ... nobody knows ... these cheeky buggars, making our life harder after each update. I am tempted to switch to Linux, but there is not fun in that, <sarcasm>"it just works!"</sarcasm>