How do I upgrade from macOS Catalina to Monterey on a late 2015 iMac?
iMac 27inch; late 2015 IntelCore i5 8GB runnng macOS Catalina. Need to upgrade OS to big sur then monterey. When prompting software update it goes NO WHERE. Recommendations. Hesitating to do safe-mode.
[Re-Titled by Moderator]
iMac 27″, macOS 10.15
