Do you get an error that says “You need to format the disk in drive [letter] before you can use it” when inserting a multi-partition SD card on your PC? This video will show you how to remove drive letters from your SD card partitions so you just see the partitions you want. Additionally, I’ll show you how to make unassigned partitions appear.

Written guide here:

00:00 introduction
01:05 removing drive letters with DiskGenius
02:47 assigning drive letters
03:41 conclusion