Hello, please add bootflag devices.smbios.board_id="default" at the VM configurations and check the issue. Also please subscribe to this KB article to get updates about known issues with Big Sur and Parallels Desktop. If you have any additional questions please do not hesitate to let us know.
Ciao Maria, Non ho capito come e dove aggiungere il comando che mi hai indicato. Grazie della tua attenzione.
Hi, please open Virtual Machine configurations -> Boot Order -> Advanced -> and enter devices.smbios.board_id="default" at the Boot Flags box
