Hey everyone. I hope I'm posting this in the right place. I have a nuvi 2598LMTHD, firmware version 510, HWID 1582.

The other day I went to update it with Garmin Express, as I hadn't done so in a while. I plugged it into PC, it was detected immediately like usual, and Garmin Express said there were both map and firmware updates. I installed the map updates and then began installing the firmware update. At some point during the firmware update, it asked me to disconnect and reboot the GPS. After I did that, my computer was no longer detecting the GPS. I'm pretty sure one or more files were corrupted somehow.

I've managed to flash it with the cure firmware, the computer started detecting it again and I could see the device files in explorer. I don't know which files are corrupt so I was going to format it with RMPrepUSB. This is where I'm running into trouble. For some reason it's being assigned 2 drive letters. E (1.80 GB free of 7.05 GB) and G (127 MB free of 127 MB). Shouldn't it only have one volume, and if so how can I fix this? I can't delete the volume with Windows Disk Management. Both volumes have a .System folder, if that means anything.

I'd appreciate any help.