I've had some mixed success.
Here is what worked:
Creating a standalone win7 64bit, using the 3.2 QWT
* With that it ran full screen, no seamless mode
Creating a template based win7 failed.
* I could not launch an AppVM
Creating a win10 standalone (for me) failed
* Would not launch
Incidentally restoring a win7 64 bit from Qubes 3.2 to Qubes 4 (for me
failed)
* This was surprising because I thought I read others have done this
Adding QWT release 4 worked
* Once QWT 4 was added, the standalone win7 64bit (created with QWT
3.2) works in seamless mode
* Caveat: you need to start the VM like this: echo SEAMLESS | qvm-run
-p --service NameOfWindows7VM qubes.SetGuiMode
* (The echo SEAMLESS I read in another post that I cant find at the
moment)
Win7 menus (for me) are now working
* I assume it was due to adding QWT 4, but running this fixed them:
qvm-sync-appmenus NameOfWindows7VM
So for a standalone windows 7, works in seamless if launched as:
echo SEAMLESS | qvm-run -p --service NameOfWindows7VM qubes.SetGuiMode
Works as full screen if:
echo FULLSCREEN | qvm-run -p --service NameOfWindows7VM qubes.SetGuiMode