OMG..did you not all test this out first?

Just upgraded to Apple M4...REGRET IT.
Not sure what the parallels virtual machine software has to do with running newer or older chips in the Mac. that should'be be an issue.
ISN't THAT THE PURPOSE of having a VM???
Ive got an $40,000 thermography camera that runs on Windows 7. This is why I have a specific VM machine to run that hardware. Come to find NONE of my VMs work now.
Did you not plan this out about why people need these virtual machines..I don't care what chip s in the Mac..a VM machine should be just that...it shouldn't care about hardware in my mac...let the VM machine deal with the hardware. thats why we use it.
Now I don't know what to do..I have patients coming here..and I cannot use Parallels..it puts me in a very horrible position financially!

 

The problem you have is not a testing problem - it is a lack of understanding on your part that the M1-M4 chips are based on an ARM architecture and CANNOT run apps compiled for an Intel architected Virtual Machine. No one has ever said that you can migrate a VM created for an Intel-based Mac to the new Apple silicon chips. The only forward migration path involves installing a new Windows 11 designed for the ARM architecture, migrating your data (cannot migrate apps), and then installing new 64-bit apps on the new VM that were designed and compiled for that version of Windows.

Your options are to either buy a PC running an Intel machine and installing your apps on that, or getting apps compatible with ARM. My guess is that you'll have to take the first option. In the meantime, just use your original VM on the Intel-based Mac.