Windows Black Screen

Hi,
I have a MacBook pro retina i7 processor. I am running Sierra and windows 10(latest update or it was a couple of days ago) trough parallels 12 (latest update).
Yesterday I got on the train, got my laptop out and there was a black screen on the mac saying restart your system. I did.
After the restart, I tried to turn on the virtual machine but it didn't load. Actually, it did load but the start menu wasn't working. I tried to open Microsoft office( I have it on the mac dock) and it did open, however the start menu still wasn't working. I restarted the virtual machine and the same problem occurred. I tried both in coherence mode and in window view, the same problem. At the moment the windows is staying on a black screen when in window view and nothing happens. When I try to shut it down it goes to sleep and doesn't shut down, even if I restart to entire computer.

So far I have:
Restarted the NVRAM of the Mac.
Restarted the SMC of the mac as well.
I have tried to restart it a couple of times the problem keeps appearing.
A couple of days ago I installed AutoCAD 2017, previously I had 2015, but for couple fo days it was working excellent so I don't think that this is the problem. Other than that I haven't done anything else that I don't usually do.

Please help as I have work to do ( I am going to cry)!!!!!

Tsvetan

 

Just want to add that after the black screen started appearing, I can't turn on any windows application. The virtual machine won't shut down it only goes to sleep when i try to shut it down even after I restart the computer. The only time it shut down was after I restarted the SMC.

 

*Update*
I booted the mac in safe mode. No errors there. It said that parallels can't be started in safe mode. I restarted the computer then to normal mode and the problem was still there.
I read about hypervision. I unticked it and I got to this point(see attached screenshot).

 

Last update!
After a very long time of loading, this happened. If you know how to solve this problem please help!
The start menu wasn't working for a while, but now it works. However, I am afraid to restart my virtual machine. I googled the error but nothing appears.
*The window is not full screen, but at the background I had some email open.*
Best Regards,

Tsvetan

 

I restarted the windows because I was unable to type in the control panel. It Microsoft word I was able to.
However now the winodws has been booting for almost 10 min and usually is booting for 10-15 sec. So I am back at square one

 

Having the same problem after upgrading to P12. I am upgrading two iMacs at the same time and one installation is causing a black screen.

 

Hey, I just tried this and everything is working again! Go to "Actions" in the menu bar (see pic) and select "Reset"

 

Glad to hear that! Feel free to reach us anytime.

 

I tried reset as well with no luck. Any other suggestions Support?

 

Well,
The way I solved it was by reinstalling parallels as well as windows, then all the apps. It took a while.