My computer won't upgrade to Big Sur

gtc1008 Said:

"My computer won't upgrade to Big Sur: My Imac is operating Catalina v 10.15.7 and won't upgrade to Big Sur. It freezes during the process and won't continue"

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Upgrade in Safe Mode:

Perform the following:

There are Two Important Streps to Upgrading: Back Up, then Upgrade

I. Back Up:

1. Backup Prior to Installation: Create a Time Machine Backup, that way, you can have something to restore your Mac from, should anything go wrong with the upgrade. Use an external hard drive that is at least 1.5 the total storage capacity as that of your internal hard drive.

II. Upgrade in:

1. Safe Mode: Hold Down: The shift key upon boot
2. Log in: as an Administrator User
3. Install the Update: by opening System Preferences > System Updates > Install the Update. But Backup First.

Hi gtc1008,

Is the computer still in macOS, or is it in the restart update mode?

Cheers,

Jack

Can you post a picture of your screen?