Parallels Messed up my BootCamp Windows 10

Had my Windows 10 upgrade working nicely in Bootcamp on my 2009 Mac Pro for the whole day and everything was going nicely.

Decided to upgrade to Parallels 11 so I could use it occasionally without having to reboot.

Deleted the previous VM for Windows 7 and them tried to create a new VM from the Windows 10 Bootcamp.
At first Bootcamp did not show up in list so I followed some Parallels troubleshooting instructions and set up using 'Install from DVD or Image file" and then selected my bootcamp disk in the source.

Tried starting the VM and got the error message "No Boot Device is Available"

Read another Parallels post to say this could be rectified by starting in Bootcamp and then running a disk check.

Tried to boot in Bootcamp and to my horror it now also has "No Boot Device is Available"

Looked for several hours online and tried several methods shown by Parallels articles, but still cannot get either Boot Camp or VM Windows to start up.

Thanks Parallels!!
I hadn't made a disk backup as I had no idea that Parallels could mess up boot camp so badly.

 

Since we need to investigate deeper, please email us the issue description along with the screenshot to cs(at)parallels(.)com, so we can check it for you.

 

Already did this with a support ticket at approximately the same time as posting the above.
But have not heard anything back yet.

 

What changes does Parallels make to the boot camp drive, are there files that I can remove when in OS X that will make Boot Camp function again?

 

Please reply us your email address from which you sent the email so that we can assist you ASAP.

 

Sorted the issue with boot camp myself, I won't allow third parties to take control of my Mac which is what Parallels techies always seem to want to do.

Using winclone I set a preference to make the bootcamp partition 'legacy bootable' which eventually worked and it will now work correctly in boot camp.

After backing up my boot camp Windows 10 using Winclone I have now successfully re-installed the Parallels VM using my boot camp disk and everything is working ok, except for the Windows 10 validation issue in Parallels VM, which I was expecting anyway.