Not getting Windows desktop

Running Parallels 12.2 on iMac with macOS Sierra 10.12.4. Windows 7 apparently starts and runs but all I get is a black screen. Doesn't seem to matter whether in coherence or not.

 

hi @PaulA8 Please try http://kb.parallels.com/123094 and let us know if that works. Thanks Arunraj.

 

Actions/reset did not work.

Paul

 

We request you to share a screenshot to check the issue.

 

I posted a response a couple of days ago. No idea where it went. All you would see on a screen shot is a completely black screen, unless I nudged the cursor to the top, then the Windows 7 menu bar would appear. That's all I can get to happen. When the menu bar was up I went under view and took a screenshot but not having done that before, I didn't know where it was or how to send it to you.

Paul

 

Is there any chance updating to Windows 10 would help? I tried scenario 1. Didn't work. Going further is over my head. I can't get at task manager.

 

A last resort would be to back up to versions of OS and Parallels that worked. Is this possible?

 

We think the Windows 7 file is corrupt. Not going to pay to upgrade to Windows 10. Not worth it for one annual use to do a personal tax return. Decided to abandon Parallels/Windows and borrow a laptop every April.