Software Update keeps searching for Monterey OS and not finding.
How can I get my iMac to upgrade to Monterey OS from Big Sur if it won't find it with Software update? I have checked compatibility, decluttered, backed up, turned off ad block, and tried to get Monterey on the Apple store (but it just tries to search on Software Update again). It can try "Finding Update..." for over an hour and keep on searching. Do I need to let it search longer before I give up?
iMac 21.5″, macOS 11.6