My computer attempted to update OS last night and now my computer is running dead slow. Late 2012 iMac. Could there be something running in the background and how would I find that?
My computer attempted to update OS last night (to Big Sur) and now my computer is running dead slow. Late 2012 iMac. Could there be something running in the background and how would I find that? OS is 10.15.7
iMac 27″, macOS 10.15