Why does my Mac21 when in sleep mode for several hours have to be restarted from back pushing button to restart
Why does my Mac21 when in sleep mode for several hours have to be restarted from back pushing button to restart
iMac
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Shut down
Disconnect all external devices
reset the smc
https://support.apple.com/en-us/HT201295
reset the NVRAM
How to reset NVRAM on your Mac - Apple Support
then boot into safe mode
https://support.apple.com/en-us/HT201262
then reboot normally with devices disconnected.
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Why does my Mac21 when in sleep mode for several hours have to be restarted from back pushing button to restart