Attach your external hard drive. Plug your hard drive into one of your Mac's USB ports. You'll need the same amount of space on the external drive as is being used on the hard drive. If your hard drive uses a USB 3.0 connection and your Mac doesn't have USB 3.0 ports, you'll need to buy and use a USB-C to USB 3.0 adapter.

Windows can’t normally read Mac-formatted drives, and will offer to erase them instead. But third-party tools fill the gap and provide access to drives formatted with Apple’s HFS+ file system on Windows. This also allows you to. If you know you’re going to use a drive on both Mac and Windows, you should use the exFAT file system, which is compatible with both.

But if you didn’t foresee that, you may have formatted your drive with Apple’s HFS Plus, which Windows can’t read by default. In fact, some manufacturers sell “Mac” drives pre-formatted with this Mac-only file system.

Don’t Format the Drive! (Yet) When you connect a Mac-formatted drive to Windows, you’ll be informed that “you need to format the disk in drive X: before you can use it.” Don’t click the “Format disk” button or Windows will erase the contents of the drive–click “Cancel”! This message appears because Windows doesn’t understand Apple’s HFS+ file system.

That’s fine, because other applications do. Just don’t format the drive until you get the important files off the drive. Of course, if the drive doesn’t have any important files on it, you can go ahead and format it. But be absolutely sure there’s nothing you need before you do. Option One: HFSExplorer Is Free and Basic RELATED: If you only need to get a couple files off the drive, we recommend. It’s the only completely free way to access a Mac-formatted drive. It does require, however, so you’ll have to.

Then, install HFSExplorer like you would any other Windows program. HFSExplorer isn’t fancy, though, and doesn’t have a lot of features. You can’t use it to write to Mac-formatted drives, and it doesn’t install a file system driver that integrates into File Explorer. But you can open HFSExplorer, read a Mac-formatted drive, and copy the files to your Windows PC without paying a dime. It can also mount Mac.dmg disk images to get at the files inside them.

This application’s read-only nature isn’t necessarily a bad thing. It ensures that no bug in the third-party driver can damage your Mac-formatted drive and the files on it.

You can set read-only mode in other applications, too–but, if you’re not going to use their write support, there’s less reason to pay for them. To use HFSExplorer, connect your Mac-formatted drive to your Windows PC and launch HFSExplorer. Click the “File” menu and select “Load File System From Device.” It will automatically locate the connected drive, and you can load it.

You’ll see the contents of the HFS+ drive in the graphical window. Just select the files or folders you want, click “Extract,” and choose a folder.

They’ll be copied to the location you choose on your PC. Option Two: Paragon HFS+ is $20, But Offers Write Access and Better Integration Paragon’s is a bit fancier, but it’ll cost you. This tool installs a file system driver that allows you to access a Mac-formatted drive like any other drive in File Explorer, or any other Windows application with an open or save dialog.

It boasts improved speed, and we wouldn’t be surprised if it were faster than HFSExplorer. And, unlike HFSExplorer, it offers full read/write access to Mac-formatted drives, so you can write to them from within Windows. Just install it, and Mac drives will show up like any other drive. If you need to work with Mac-formatted drives on a regular basis and you want the operating system integration, speed, and write access, Paragon HFS+ is a great choice and will be worth it for you. But, if you just need to get some files off a Mac-formatted drive occasionally, this is overkill and you can save $20 by sticking with HFSExplorer. Paragon does offer a 10-day free trial of HFS+ for Windows, so you can give it a try and see if it works for you. And, if you just need to get files off of a Mac-formatted drive once, you can just use the trial and be done with the application by the time it expires.

Option Three: Mediafour MacDrive Costs $50 to $70, But Includes More Features Mediafour’s is similar to Paragon’s HFS+ for Windows, but with more features and polish. It’s noticeably more expensive than Paragon HFS+ too, at $50 for the Standard version and $70 for the Pro version. For most people, this software won’t really be worth it. But it offers a few unique features, like support for Mac-formatted RAID disks. It also offers a graphical interface with support for verifying, repairing, and formatting Mac-formatted drives. Paragon’s HFS+ gets out of your way and doesn’t provide a graphical interface–it just enables access to HFS+ drives in File Explorer and other applications. If you need all these tools, go for it–this is the most full-featured solution for working with Mac-formatted drives on Windows. But you probably don’t need all these tools.