Data storage on your Mac is important—it determines how many apps, documents, photos, and videos your computer can hold locally. If you run into the upper limit , your Mac might not perform as well as you might hope. Here’s how to check the size of your Mac’s internal storage. First, click the “Apple” logo in the upper-left corner of your screen and select “About This Mac” from the menu. In the window that appears, click the “Storage” button. (In some earlier versions of macOS, this button may appear as a tab.) When the “Storage” display loads, you’ll see a list of your internal drives and each drive’s capacity. In our example, this MacBook Pro includes just a single drive with “500 GB of Flash Storage.” You’ll also see how much free disk space you have available on each drive, listed just beneath each drive name. RELATED: How to Check Free Disk Space on a Mac If you want more details on your internal storage, click the “Overview” button, then click … [Read more...] about How to See How Big Your Mac’s Internal Storage Is