USB Flash Drive Not Appearing In My Computer

I plugged a USB flash drive into my Windows XP PC and it did not appear in My Computer. It used to appear as Drive G: two months ago. When I checked Disk Management the flash drive is there with a drive letter J: and I can open it in the Computer Management window.

It took me a while to figure out the real culprit. I changed the drive letter of the flash drive to Z: in the Computer Management window but it did not solve the problem.

The only hardware I connected to my PC for the last two months was a three-partitioned external hard drive which is currently assigned the drive letters G, H, and I.

Would unplugging the external hard drive enable the USB flash drive to appear in My Computer? No, it did not.

Suddenly a thought came into my mind: Tweak UI. I have this Powertoy and I remembered checking boxes for drive letters.

So there it was the culprit. All the checked drive letters have been assigned to my internal and external hard drives and DVD drive. No drive letters were assigned for new removable storage.

I opened Tweak UI, checked the drive letter J: in the window and click OK. And that solved the problem—although I have to change the flash drive’s drive letter to J: again since I changed it to Z: earlier.