You were using this drive, and you have data on it? In that case you do
not have to initialise it. That's really only necessary before it's been
partitioned.
Try assigning it a drive letter, and at worst you can try the command line
version of the disk management utility. Open a command prompt and type
"diskpart", and then work through the commands. Basically the process is
to list the disks, select the disk you want, list the partitions, select the
partition you want, assign it a drive letter. In diskpart, the ? key will
get you the help text. You don't have to list the items if you know
exactly what they are, but it helps to be sure.
The syntax is like this:
List disk
Select disk 2
List partition
Select partition 1
assign
exit
and at this point, you should be able to see the drive with a letter in My
Computer and Explorer.
