If your MacBook is running slowly or you’re having trouble saving files, it may be because your hard drive is full. Checking the amount of free space on your hard drive is a quick and easy way to see if this is the case.
There are a few different ways to check the space on your MacBook. One way is to click on the Apple menu and select “About This Mac.” Then, click on the “Storage” tab. This will show you a pie chart of your hard drive usage, as well as a list of the files and folders that are taking up the most space.