Have you ever ended up trying to use your HDD on Mac & couldn’t write anything?
Yeah, Its the most irritating situation when you try to clean up or organize your photos or other data.
Its because your HDD by default will be on NTFS format, you can reformat it to exFAT format, which allows you to use an external HDD on both Windows & Mac.
Here is a video to show how you can do this.
Note: Make sure to take a backup of your data before reformatting it.