How do I fix 'Raybook will damage your computer' message and freezing on iMac?
on opening my iMac today there was a message ‘Raybook’ will damage your computer Delete or cancel options offered but neither responding
subsequently my iMac screen went black and then on coming back again some applications went available but slow and others unresponsive
I now can’t shut down or do anything
[Re-Titled by Moderator]