Your Mac stores files on a drive you can locate in three places

Your Mac's hard drive (or solid-state drive, if you have a newer model) is not sitting on your desk — it lives inside your computer. You can see how much space it has, what's using that space, and where your files actually live by opening three built-in tools: Finder, About This Mac, and Storage settings. Each one shows you something different about your drive and what's on it.

The fastest way to see your drive is to click the Apple menu in the top-left corner, select "About This Mac", and look at the "Storage" tab. You'll see a colored bar showing how much space is used and how much is free. If you want to dig deeper — to find out which folders or apps are taking up the most room — you'll need to open Finder or the Storage settings panel instead.

Key Takeaways

  • Your Mac's drive appears in Finder under "Locations" on the left sidebar, labeled with your computer's name or "Macintosh HD".
  • The About This Mac window (Apple menu > About This Mac > Storage tab) shows your total drive capacity and how much space each category is using.
  • System Settings > General > Storage displays a detailed breakdown of what's consuming space and lets you remove large files or unused apps.
  • Older Macs may show two drives: one for the operating system and one for your files, but newer Macs combine them into a single drive.

Finding your drive in Finder

Open Finder (the blue and white face icon in your dock, or press Command+Space and type "Finder"). Look at the left sidebar under "Locations". Your Mac's main drive appears there with your computer's name — often "Macintosh HD" unless you renamed it. Click it once to open it.

Inside, you'll see folders like Applications, Library, System, and Users. The Users folder contains your personal files. Double-click "Users", then double-click your username, and you'll see Desktop, Documents, Downloads, and other folders where your files actually live. This is where you navigate to find specific files or folders on your drive.

If you don't see your drive name in the sidebar, go to the Finder menu at the top, click "Settings", select the "Sidebar" tab, and check the box next to your drive name under "Locations".

Checking your drive's total capacity and usage in About This Mac

Click the Apple menu in the top-left corner of your screen. Select "About This Mac". A window opens showing your Mac's model, processor, and memory. Click the "Storage" tab at the top of that window.

You'll see a horizontal bar with colored sections. Each color represents a different type of data: System (the operating system itself), Apps, Photos, Documents, Audio, Video, and Other. Below the bar, you'll see the total capacity of your drive and how much space is currently free. Hover your cursor over each colored section to see the exact size in gigabytes.

This view is useful for a quick snapshot, but it doesn't tell you which specific apps or files are the largest. If you need that detail, move to the Storage settings panel instead.

Using Storage settings to see what's taking up space

Click the Apple menu, then "System Settings" (or "System Preferences" on older Macs). Click "General" in the left sidebar, then click "Storage" on the right. Your Mac will scan your drive — this takes a minute or two the first time.

Once the scan finishes, you'll see a list of apps and files ranked by size, largest first. Click any item to see more details. For example, clicking "Photos" shows you how many photos and videos you have and how much space they're using. Clicking "Documents" breaks down your files by folder.

This panel also offers quick actions: you can delete large unused apps, empty your trash, or remove old language files and duplicate downloads. These actions happen directly from this screen without opening other windows.

Understanding drive names and partitions on older Macs

If your Mac is more than five years old, you might see two separate drives listed in Finder: one called "Macintosh HD" (or similar) and another with a different name. This usually means your Mac has a partition — a single physical drive divided into separate sections, often for backup or to run multiple operating systems.

For most users, you only need to know about the main drive where your files live. If you're unsure which one that is, open About This Mac, go to the Storage tab, and look at the drive name shown at the top of the colored bar. That's your primary drive.

Very old Macs (pre-2016) sometimes have a separate recovery partition, which is a small hidden section used only if your Mac needs to repair itself. You don't need to interact with it under normal circumstances.

What to do if you can't find your drive or it's not showing space correctly

If your drive doesn't appear in Finder's sidebar, it may be hidden or unmounted. Restart your Mac first — this solves most visibility issues. If it still doesn't appear, go to Finder > Settings > Sidebar and make sure your drive name is checked under "Locations".

If the storage numbers in About This Mac don't match what you expect, your Mac may need to recalculate. Restart your computer and check again. If the discrepancy is large (more than 10 gigabytes), you may have hidden files or a cache that's taking up unexpected space. Open System Settings > General > Storage and look for "Other" — this category often contains temporary files that can be cleared.

If your drive shows as full but you can't find where the space is going, try a free third-party tool like Disk Diag or DiskSight, which scan your entire drive and show you exactly which folders are largest. These tools are informational only and don't delete anything without your permission.

Frequently Asked Questions

Can I see how much space individual files are using?

Yes. Open Finder, navigate to any folder, right-click a file or folder, and select "Get Info". A window shows the file size in bytes and gigabytes. For a folder, it shows the total size of everything inside it. To see sizes for all files in a folder at once, go to View > as List, then drag the "Size" column header to make it wider.

What does "Other" mean in the Storage tab?

Other includes system caches, temporary files, language files you're not using, and miscellaneous data that doesn't fit neatly into the other categories. Most of it is safe to ignore. If Other is taking up more than 20 gigabytes, your Mac may benefit from a restart or a cache-clearing tool.

Is my SSD the same thing as my hard drive?

Yes, functionally. SSDs (solid-state drives) are what newer Macs use instead of traditional hard drives. They work the same way from your perspective — you find them in Finder the same way, and the storage information looks identical. SSDs are faster and more reliable, but you interact with them identically.

Why does my drive show less free space than I think I deleted?

Files you delete go to the Trash, which still takes up space on your drive. Empty the Trash by right-clicking it in the dock and selecting "Empty Trash". Also, your Mac reserves some space for system operations — typically 10 to 15 percent of your total drive capacity is always held in reserve and won't show as available.

Can I move my drive to an external location?

No — your Mac's internal drive is built into the computer and can't be relocated. However, you can connect an external drive and move files to it, which frees up space on your internal drive. External drives appear in Finder's sidebar just like your internal drive and work the same way.