
This process only takes a few minutes but will erase all files on the drive so make sure you copy off any files you need before reformatting. To copy files to the drive you must re-format it using a different type of formatting. This is common with new drives which frequently come formatted for Windows computers in the NTFS format, which is not comparable with Mac OS. Partition A External Drive For Both And Windows Mac OS With Partition A External Drive For Both And Windows Mac OS With.If you can’t copy a file to your hard drive it likely isn’t formatted for the operating system you are using. Since exFAT formatted external hard disk are readable and writable by both the operating systems. You can do that by typing disk format or disk management in Windows search or going to Control Panel Administrative Tools Create and format hard disk partitions. Keep in mind that using a drive frequently between Windows and Mac could increase the chances of hard disk corruption, so make sure you have a backup of the data any drive. In case if you happened to lose you will need a reliable third party application to fix the issue. Instead of formatting a drive with a single file system, the user can create two partitions and format those with NTFS, APFS, HFS or any other file systems. Select the drive from the left sidebar, then click the Partition tab. In the left sidebar, you should see your hard drive and its partitions.

Right-click the Windows partition and select Shrink partition. If you dont have a backup you will need a professional hard drive recovery software to recover your lost or formatted data.
