android damaged sd card

My phone crashed while loading a game, and upon reboot it said "Damaged SD card", consider rebooting it.

When I connected my SD card to my laptop (via a cardreader/SD Adapter), It was able to read all files, so the SD card wasn't really damaged.

I ran the following command via command prompt, and it fixed it

chkdsk /x /f <sd card drive>

/x stands for "Forces the volume to dismount first if necessary. All opened handles to the volume would then be invalid"

/f stands for "Fixes errors on the disk."