I have system restore turned off, so that's out of the picture. I was messing around in my registry because my external hard drive won't show up in My Computer, even though it shows up in Device Manager. I also went to Disk Management and it doesn't show up there either. Nobody in the hardware troubleshooting or building and buying sections responded to my questions, so if you guys know what is going on please help. Also, to make a registry backup don't you just copy the registry and put it in a folder somewhere?