External Hard Drive has Disappeared

[anim8or]

Hi All. I am knew here. I have a problem I am hoping you can help me with. I have a desktop PC with Win7. I was using a 700g external hard drive to store all my photos on. I wanted to change the drive letter to G so went to Disk Management etc and changed. However, I must have done something else as well because now drive G has disappeared.

I went in to somewhere and discovered it was there (without the G) but it was disabled. I clicked the appropriate icon to Enable it, but had a message saying it could not be enabled. Any suggestions please?
Regards
Anim8or

 

[anim8or]

Done that a few times but still no good. Thanks very much for replying though. Much appreciated.

 

[LiesaNotridge]

Try it on another PC to see whether the same problem. If yes, then try to recover data off drive at first.

 

[LiesaNotridge]

When your drive is deleted, you cannot see it
when your partition table on the disk is damaged, you cannot see your drive either.