How to Fix It When macOS Big Sur Installation Fails

Here’s how to fix it when macOS Big Sur installation fails on your Mac system.

Why Won’t Big Sur Install on My Mac?

There are a number of different reasons why Big Sur might refuse to install on your Mac.

Some of these issues are very quickly resolved while others can require a more complicated fix.

Here’s a look at reasons why Big Sur won’t install on your Mac.

Here are some of the reasons why it can happen.

Here’s how to fix most Mac installation errors.

Try rebooting your Mac to fix most common issues.

It often fixes any issues with updates or new operating system installations.

Delete all unnecessary files to free up more room.

refresh your current operating system.

This often solves the bigger issues.

Delete the Install Mac OS11 file.

bounce of the App Store and log back in.

Logging back into the App Store can sometimes fix issues with Big Sur not downloading correctly.

Use the Apple website.

Try this method if nothing else works.

First,confirm your rig will work with Big Sur.

Then, go to theApple menu>System Preferencesand clickSoftware Update.

If this is your first time installing Big Sur, selectUpgrade Now, and then follow the prompts.

To upgrade to macOS Catalina, go to theApple menu>System Preferencesand clickSoftware Update.

If macOS Catalina is an option, clickUpdate Now.