Stop! Wait! I know what you’re thinking. This SD card has more the 50MB on it, but Windows won’t format it properly. Even Disk Management is failing.
For anyone who backs up their Raspberry Pi images or re-images their SD cards, this can be a huge hassle. Let alone if that unfortunate moment has come and your SD card or USB stick is showing no memory available at all. The formatting is just ruined. Breathe deep there are utilities out there to help.