Sometimes you have a USB stick that you cant format or recognise from Windows. Maybe you used DD to write Pop_OS to it and now shitty Windows no longer recognises it as a USB stick?!

You can’t format it from File Explorer OR Disk Management. Oh no!

Using cmd/powershell:

diskpart
list disk
select disk X
attributes disk clear readonly
clean
create partition primary
select parttion 1
format fs=fat32 quick

Hopefully that sorts it. If not, find your nearest GNU/Linux device and this single line will do it. Replace X in sdX so it matches your block device.

dd if=/dev/zero of=/dev/sdX bs=1M count=1