I installed a USB 3.0 external solid state hard drive on my 27" 2012 iMac with a clean copy of Catalina. The previously internal hard drive has not been touched. I wanted to install a SSD w/o taking apart the iMac. Sometimes when it goes to its screen saver it freezes up.
What might be causing the freezing? Catalina itself or something else?
Thank you for looking.
What might be causing the freezing? Catalina itself or something else?
Thank you for looking.