The list of Macs on which Big Sur is supported is below: Release the keys when you hear the startup chime or see the Apple logo on screen.Īlso, double-check that your Mac is compatible. Boot it while holding Cmd + Option + P + R.

Reboot your Mac in Safe Mode by holding down Shift while it boots.

If the download completes successfully, but macOS Big Sur won’t install, there are a few things you should try. When you find it, drag it to the Trash, empty it, restart your Mac, and try again. Check your Downloads folder and Applications folder. Look for the unfinished download file.Try connecting to your router with an Ethernet cable instead of by wifi if you can.More ideas when macOS Big Sur won’t download CleanMyMac X can identify those files and allow you to remove them with a couple of clicks, potentially clawing back gigabytes of space.ĬleanMyMac X has a free version you can try, and this app is notarized by Apple. However, there are many files on your Mac that take up several gigabytes of space that you probably don’t even realize are there. These include temporary files, cache, language support files, and many others. It can be difficult to decide what files to remove and what to keep. You should have at least 16GB available in order to install Big Sur. Go to the Apple menu and choose About this Mac. It could be that the download server is down or is very busy, and that’s why your download failed. If you see a message while you’re downloading Big Sur that says, 'macOS Big Sur download has failed,' there could be a number of reasons. Here’s what to do when macOS Big Sur won’t download. Grey screen with mouse pointer on Big Sur.USB devices disconnecting randomly on Big Sur.Bluetooth is not working on macOS Big Sur.If you’re interested in resolving a particular issue, just go through this list and choose the one that relates to you: In this blog post, we’re covering the issues that may occur during Big Sur installation and after you've upgraded your Mac.

In this article, we’ll examine some of the most common macOS Big Sur issues and fixes. Thankfully, for most of us, the problems we’re likely to run into are much less serious and usually have a straightforward fix. For example, Catalina caused many problems, some of them serious, for many users. But, like any new operating system, it’s not without its problems. But if you’re looking for manual solutions, see our ideas below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X.īig Sur is a terrific update to macOS. It’s notarized by Apple and is optimized to find issues on macOS Big Sur.

Here’s a tip for you: Download a free version of CleanMyMac X.

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