An error occured and I can’t open any apps and restart my mac
I can’t seem to open any applications, and when I try to restart my MacBook Air, my Cursor turns into the loading Cursor and doesn’t restart.
MacBook Air 13″, macOS 10.15
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Hold the power button for a few seconds to force the shutdown.
Reset SMC How to reset the SMC of your Mac - Apple Support
Reset NVRAM Reset NVRAM or PRAM on your Mac - Apple Support
Restart holding Shift to enter Safe Mode. Once loaded, restart normally and check if it got any better.
You can also run Diagnostics. Restart holding D to enter that mode and check if it brings any errors.
Use Apple Diagnostics to test your Mac - Apple Support
Apple Diagnostics reference codes - Apple Support
Also run First Aid to check the disk Repair a storage device in Disk Utility on Mac - Apple Support
Last action would be resin tall macOS itself How to reinstall macOS - Apple Support
If none of those actions work, you'll have to take it to an Apple Store or Authorized for proper diagnostic and service.