Stargazer42 wrote:
Additional info. Keyboard mouse still moving but screen is not responding. Little rectangle in middle of screen apprears to show prior screen image. I can use mouse to check battery life but all other comands do nothing. Help.
You can always force shutdown your Mac by holding the power button/TouchID for ~6-10 sec
Reboot as normal and test.
Log out, sleep, wake, restart or shut down your Mac
https://support.apple.com/en-mide/guide/mac-help/mchlp2522/mac
To trouble shoot further you can:
—Try a SafeBoot https://support.apple.com/en-us/HT201262
Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.
—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac
This will tell you if it a universal issue or isolated to your user/admin account.
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS