my macbook air doesn’t finish upgrade to monterrey

"my macbook air doesn’t finish upgrade to monterrey"

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A Failed macOS Upgrade:

So, is it in a loop? Or is it stalled? Or does it fail and restart without an update?

Determining if this is an option...

I. Verify Compatibility:

Go Here: Learn About Compatibility and how to Identify your Specific Mac Model - Apple Support

II. How to Verify:

A. Reveal your Model:

What is the Model of your Mac? To find out...

1. Go to: Apple menu
2. Click: About this Mac
3. View: Second Line-Down

then...

B. Compare the Results:

See if the Model you found is shown here:

• macOS Monterey is Compatible with these Computers - Apple Support

C. If Compatible:

Back Up your Mac First:  Be certain you Create a Time Machine Backup of your Mac, so that way you can have something to restore your Mac from, should anything go wrong with the reconfiguration.