Since updating to Catalina 10.15.7, my Mac will not shutdown.

HHH551 wrote:

Dear Apple,

Since updating to Catalina 10.15.7, my Mac will not shutdown.

Having clicked shutdown, the dock and menu bar dissapear, just leaving my desktop background on display. My Mac then freezes until it eventually reboots. After rebooting, I can then click on Shutdown from the login page, and the Mac shutsdown. Everytime I login after a failed shutdown, I am provided with an error message, reading something like "you're computer shutdown because of an error", giving me the option of reporting this issue to Apple - which I have done on numerous occasions.

The fact that having 'upgraded' my Mac, it is now not able to simply shutdown... is simply pathetic.

You can always force shut down the Mac holding the power button/TouchID for ~6-10 sec as mentioned above.

ref: https://support.apple.com/en-mide/guide/mac-help/mchlp2522/mac

Learn what to do if your computer restarts or shuts down unexpectedly, or you get a message that your computer restarted or shut down because of a problem...

If your Mac spontaneously restarts or displays a ... - Apple Support

https://support.apple.com/en-us/HT200553

Try pressing the power button long (for about 5-10 seconds)