winxp help no drive letter assigned?

[WATERSBOY]

I have a usb 2.0 external hard drive (maxtor) when I plug it into any usb port it gets installed and reports that it is now working but I have no drive letter assigned in the control panel or in window explorer. If I go to the device mgr, it is there and says it working. What am I missing? Thanks for you help
os is windows xp pro.

 

[SKORPI0]

Has the drive been partitioned and formatted?

 

[WATERSBOY]

Yes the drive has software on it already and has been working with this computer I removed it yesterday and took it to a friends house and when I returned to reattach it to my computer it has not worked since.....

 

[Twista]

this is what you do :

a picture with the steps i just made.
You have to right click on the drive in mangament, than add, than pick a letter.

 

[WATERSBOY]

twista, I followed your instructions and I still don't know how to change the drive from unallocated to allocated???? Need a little more help. Thanks

 

[CZroe]

Originally posted by: WATERSBOY
twista, I followed your instructions and I still don't know how to change the drive from unallocated to allocated???? Need a little more help. Thanks

Uhh, if it says "Unallocated" you're missing a partition buddy. Sorry.

Time for recovery software? The partition is lower-level than file-system formatting. You can't just re-create one because you'll also have to re-create the file system (format the partition).