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. HFSExplorer isn’t fancy, though, and doesn’t have a lot of features. Then, install HFSExplorer like you would any other Windows program. It does require Java, however, so you’ll have to install that first. It’s the only completely free way to access a Mac-formatted drive. If you only need to get a couple files off the drive, we recommend HFSExplorer. RELATED: How to Restore Files From a Time Machine Backup on Windows Option One: HFSExplorer Is Free and Basic But be absolutely sure there’s nothing you need before you do. Of course, if the drive doesn’t have any important files on it, you can go ahead and format it.
Just don’t format the drive until you get the important files off the drive.
That’s fine, because other applications do. This message appears because Windows doesn’t understand Apple’s HFS+ file system. 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”!
