USB does not show up in Device Manager under Disk drivers.

[Theoddbro]

So when i plugin my USB it says it was installed but it does not show anywhere.
Not in my computer , not in Device Manager.

http://gyazo.com/45f0d6be62165d7c1f3ca1f87c87a23b

I wanted to reinstall the drivers in Device Manager but the problem was its not there.
Restarting the computer , uninstalling universal serial bus controllers etc. Tried all the generic stuff nothing worked.

Any suggestions would be nice. Reinstalling the OS would fix it , but it does not see my USB and i don't have the os on a CD.

 

[hilltopmonk]

checked under Disk management?

cos if its unformatted or in a weird format or has unallocated space then it wont show in most places

 

[Theoddbro]

checked under Disk management?

cos if its unformatted or in a weird format or has unallocated space then it wont show in most places

I did check it. Everything worked fine until 2 weeks ago.
Since i bought a new case. After that for some reason no USB flash driver works. Everything else works fine.