Mac computers are generally reliable. But as with any computer, sometimes things go wrong. Before you spend big on a new Mac, though, try a factory reset, which wipes your computer and reinstalls a clean version of macOS. A factory reset is also the best way to prepare your old computer for a new owner to make sure no leftover data falls into the wrong hands.
The process has been the same for years on Macs with Intel processers, however, the move to Apple silicon has slightly altered the method for wiping and reinstalling the operating system. Here’s how to erase your hard drive and reinstall the operating system on your Mac, whether it has Apple’s M1 chip or features Intel components.
Enter Recovery Mode
Time Machine or sync important files to iCloud.