"There is no operating system installed in this virtual machine" error.

"There is no operating system installed in this virtual machine" error.



I just upgraded parallels 10 ( on osx 10.10.5 on a macbook air ) to parallels 13.
I previously had a running full licensed version of windows 8.1 in a Virtual Machine which booted and ran with apps inside ( microsoft office / wavepad / etc ) on parallels 10.
Now after a couple of reboots of the windows VM ( and mac book air ) after parallels 13 installed, I now also have the same problem.

Any suggestions ?
Thanks.

Matt C.

 

Hello @muthiahc ,

Please follow the steps provided at http://kb.parallels.com/113617 and http://kb.parallels.com/123150 and check if it works.
Thanks
Alfena