Windows 7: Windows 7 Home Premium won't detect my USB drive

It won't detect a specific USB which has some important documents on it. I've tried other USB pen drives and they work fine. With this particular USB however, whenever I insert it, the light flashes and the computer makes the usual noise when a USB is inserted in, but it does not show up on my computer at all. I've tried on someone else's windows 7 computer and it doesn't work either so I'm assuming there is something wrong with the pendrive. However when I go to disk management there IS a USB shown present.

Please help someone- really desperate to get my files back

Welcome to the forum.

Have you inserted it on another computer? Does it show up there?

Can you please put out the screenshot?

try it with a USB Hub

Won't do a thing to fix the issue, but there is some chance you will be able to access and save the files to your HDD in case the pendrive is actually dying. (I did it quite a few times for friends, for both pendrives and external HDDs that suddenly started having issues)