Mac stuck on checking for updates

I run Big Sur 11.6.1 and have noticed that my System Preference reads "1 update". However, when I choose Software Update, the system gets stuck at "Checking for updates". Nothing freezes, but the wheel keeps spinning and nothing happens. I wish to update the OS (the option was there earlier).


I have tried repeated reboots. I have done a disk utility check. I have tried removing .plist files related to "software update" and "Apple store" (following various advice in seemingly older related threads. Nothing has worked. Any advice, please?


[Re-Titled by Moderator]

MacBook Pro 15″, macOS 11.6

Posted on Jan 23, 2022 12:32 PM

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Posted on Feb 1, 2022 5:16 AM

Thanks to your initial request for advice and from reading all replies, I have today solved the same problem on one of the 2 iMacs we use. I had the same symptoms on 1 of the iMacs (the other has been OK throughout in this respect), and wanted to update to 11.6.3 on the troublesome machine. Ran all the checks mentioned, including EtreCheck. This gave a list of apps installed in the past 30 days. To my surprise, there was an app "Install macOS Monterey" sitting in the main Applications folder, dated 22 Jan, 2022.


Surprise—because both iMacs have only the option "Automatically: Check for Updates" ticked. Anyway, deleting the app and restarting solved the problem. The Software Update worked perfectly, now showing Monterey as available and, for my immediate purpose, Safari 15.3 and macOS 11.6.3, which I'm now in the process of installing.


Hope this strange solution may be useful to someone else!

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Mac stuck on checking for updates

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