Parallels not starting after upgrade to MacOS 26.5

[RonnyH3]

Parallels does not start on M1 MacBook Pro after upgrading to MacOS 26.5. Tried restart, reinstall of Parallels, added Parallels to all security settings and firewall. Displays "Starting" and then quits or "To complete Parallels Desktop setup, please restart your Mac". Restarting doesn't help.

 

[RonnyH3]

Downloaded Parallels from App Store and that version started but my license is not valid for that version.

 

[Keshav Dosieah]

Parallels does not start on M1 MacBook Pro after upgrading to MacOS 26.5. Tried restart, reinstall of Parallels, added Parallels to all security settings and firewall. Displays "Starting" and then quits or "To complete Parallels Desktop setup, please restart your Mac". Restarting doesn't help.

Hello,
Thank you for your post.
We have created a ticket for you in order to reach out and assist you further.
Please check your emails.
Regards,
Parallels Team

 

[RonnyH3]

Solved it by removing /Library/Preferences/Parallels and then reboot.