Hi, I bought my wife a new Dell XPS 8700 with Windows 7. Her old computer motherboard seems to be failing and I want to just take her old hard drive out and boot to it in the new Dell. Both OS are Windows 7. The one stumbling block I know is an issue is that we are going from an NVIDIA GeForce GTX 650 Ti to a AMD Radeon HD 7570. I have removed all the NVIDIA drivers (Not the chipset) from the hard drive. When I put the older hard drive into the new system, it says that window encountered and error and can not start. It can not repair it either. I did not pursue the restore from an earlier time option. I intended to download the ATI drivers once it booted up. It appears there is something possibly in configuration or hardware recognition I am unaware of that is preventing windows from booting up. Bios does see the HD. I am open to all ideas.