Why isn't macOS Monterey working on my MacBook Air (M1, 2020)?

AllieGee00 Said:

"Why isn't macOS Monterey working on my MacBook Air (M1, 2020)?: I've downloaded it 3 different times today and still isn't launching. Help......."

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Troubleshooting a Failing macOS Upgrade:

Two Thoughts:

A. Try it in Safe Mode.

When you boot in Safe Mode, login items do not open at log in, certain preferences are set aside, and damaged system files (i.e. caches) are fixed. To boot up in Safe Mode [Hold Down: the shift key upon boot].

B. Use a New Admin User:

Create a new administrator for temporary use, and see if you can install with that user. Once all is installed, login to the normal user, and delete this user you just created for the install.

Hi,

You'd better make Genius Bar reservation if your local retail Apple Store is open or find opened local Apple Authorized Service Provider to install macOS Monterey on your MacBook Air. It's free and reliable.

Genius Bar Reservation and Apple Support Options - Apple

Apple - Find Locations - Location Selector