![]() We have some customers who are not used to the interface and the machine’s performance after updating to macOS Big Sur, and they have requested to back off and revert to the previous operating system. Possible To Downgrade Back to macOS Catalina/ macOS Mojave? I cannot stress the 3 points above more than anything else because you can ruin your Mac if you don’t make sure your Mac is ready for the update. You MAY potentially have to sacrifice by wiping your hard drive clean and reinstalling a brand new operating system – which means starting fresh! ![]() If you do not have enough storage, the execution will be stuck. Then DELETE them from your trash before clicking the “INSTALL” button. Backup Your Mac Before Updating – If you do not have sufficient space, delete some unwanted files on your computer or throw some into the cloud or external hard drive.(NOTE : How to check your storage on your Mac) Make sure you have enough space before executing. Executing the macOS Big Sur installation file will require a minimum of 35 gigabytes (at least) for the installation to be successful. Make sure your Mac has sufficient storage – YES! This is extremely important that I have to emphasize on! Downloading macOS Big Sur installation file requires between 12-15 Gigabytes of free space in your Mac. ![]() To find out whether your device is compatible with the update, click here to scroll up to the compatibility list. Make sure your Mac is compatible with the update – It may sound stupid to repeat again, but this is the most basic reminder before updating.We have developed a checklist for you to ensure that your Macbook or iMac is ready before updating. You should be aware of a few things before updating to Big Sur, and your Mac must be ready before updating. Things To Do Before Updating to macOS Big Sur Note: ALL the above points mentioned are things that we gathered from our customers or witnessed during usage. Your Mac MAY not last as long as it could before upgrading to macOS Big Sur. Battery Not Lasting : With great features and a better user interface, it drains more juice on your Mac.(NOTE : If you update macOS Catalina, you should be free from this problem). At least, while the developer is still configuring the app to make it compatible with Big Sur for the time being. With the update, some of the third-party applications may not be compatible with big Sur. Incompatibility Of Applications : Some of us use third-party applications.As we know, Mac comes with small disk space for some users who maximize their disk space, you may want to be alert on this. However, as the file size is getting bigger, each update and this update requires 12-15 Gigabytes of free disk space. Huge File Size : Update to macOS Big Sur requires us to download the installer from the App Store. ![]() For those still capable of upgrading, but your machine is 3 years old or older, you will experience some delay when launching some applications.
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