USB flash drive used to work in vista. Now only shows up as device on task bar. works on other computers.

Hi there mikejan,

Is the drive recognized by Disk Management and how?
As it is recognized on other computers, it may be a good idea to back up the data stored on it.
Then, I guess you can try the following: Go to Device Manager -> Uninstall the drive -> Plug it out and restart your system -> plug it back in.

Hope this will help,
D_Know_WD