Upgrade Error

I'm trying to upgrade a system from Windows Vista Home Premium 64-bit to Windows 7 64-bit. The problem I 'm having is while trying to run the upgrade it says that it find find information for the hard drive or DVD-RW that I must contact the manufacturer for information. I looked under the system properties and it showed both devices as unknown devices. I've tried uninstalling the devices to see if windows would reinstall the devices on reboot, but I get the same error. Any ideas?

#540175

I have the same problem in my laptop when i try to upgrate vista to windows 7.

I try many ways upgrade it many time & i am unable to do that. As suggested by one of my friend, i decided to take the technical help for Microsoft Windows Vista Support from igennie Technicians.

They upgrade it i don't know how but now i am using windows 7 with my all the old software's and settings.

#541879