Catalina Blues
Co-worker finally updated their 2017 MAC. Catalina is not compatible with any currently available Microsoft programs, so we can no loner use it with this OS. We cannot seem to get the computer to download the latest OS which would give us 11.0 or above OS which is required by Microsft 365 and even Microsoft 2021.
Ideas on how to upgrade or deinstall Catalina?
iMac 27″, macOS 10.15