If hardware is the problem it means that native Windows 7 drivers are the cause. If we could identify the hardware then we could get him to http://www.sevenforums.com/installation-setup/11273-install-windows-7-safe-mode.html it's worked wonders for me before.
My Computer
At a glance
Windows 7 Ultimate x64AMD Sempron Dual Core3GBNVIDIA GeForce 6150SE nForce 430
- Computer Manufacturer/Model Number
- Compaq Desktop
- OS
- Windows 7 Ultimate x64
- CPU
- AMD Sempron Dual Core
- Memory
- 3GB
- Graphics Card(s)
- NVIDIA GeForce 6150SE nForce 430
- Screen Resolution
- 1024x768
- Hard Drives
- 150GB Sata