Imac - almost daily crashes
I own a iMac desktop and macAir. Both have started crashing almost daily. The desktop, which is circa 2014, is the worse. This started around July 18. I've ordered a refurbished Mac Proc to replace the MacAir. It is almost full, and is even older therefore I understand why it is crashing. However, the hard drive on the iMac is only using 2.4 out of 3.12 T.
I plan to order a new desktop in the next 6 months. The desktop is my usual workhorse. But the crashes concern me. Will it be safe to migrate data from my desktop to a new desktop? After today's crash, the system reopened with a message that it had lost the keychain data.
Related question: should I get another iMac? None of the existing iMacs have a 27 inch screen. Could I order a Mac mini and use that with my existing 27 inch screen??
iMac 27″, macOS 11.7