Parallels 20: older Mac OS X versions do not boot

ErnstM

Junior Member
Hello.

My Parallels setup has two older Mac OS X virtual machines (for old software that doesn't run on modern macOS). One PVM running Mac OS X 10.9.5 and one PVM running Max OS X 10.11.6. Neither of the two PVM's boot under Parallels 20.0.0-55653, only showing a black screen.

Fortunately reverting back to Parallels 19.4.1-54985 helps getting up-and-running again.

Is this a known issue, will it be fixed in a coming update?

Ernst Mulder
 
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