#HOW TO CLEAN INSTALL MAC OS SIERRA WITHOUT LOSING DATA INSTALL#
To install macOS Monterey on your Mac, you need to make sure that your device is compatible with this operating system version. What You Will Need and Is Your Computer Suitable The first method is generally used with beta macOS versions since it allows you to try out the operating system without making any changes to the main startup drive. Therefore, it gives you the chance of a second fresh start with your device. Also, this type of clean macOS install involves completely erasing your Mac and restoring it to factory settings. Startup drive: If your Mac is having startup issues, running slow, or is behaving strangely, doing a clean install directly on your Mac’s startup drive can solve those issues.This method allows you to keep your older macOS version and, at the same time, try out the new one. However, for this method, you’ll need an additional external drive (aside from your Mac’s startup drive). Non-startup drive: Performing a clean install on a non-startup drive is a bit easier compared to the other type since it doesn’t require you to create a macOS bootable USB drive.When it comes to performing a clean install of macOS, you have two options: doing it on a non-startup drive or on your Mac’s startup drive:
Which is why it may be better to go the harder way but thus avoid such issues. However, sometimes an upgrade install may cause glitches and make your Mac run slow. Many people choose this option since it is much easier than a clean install. Upgrade install means that you’ll be installing the new OS over your old one.Since doing a clean install involves deleting all of the data from your Mac, it is essential to make a fresh backup before moving further.