Hi Rottweilers,
Thank you for the post.
First I would like to know the exact wording of the error message on the screen.
Currently, I suggest unplugging unnecessary hardware devices such as sound card, printer and network card before installing Windows Vista.
After that, please enter the BIOS configuration window and check if there is an option which will enable the BIOS to automatically detect all drives. If there is, please select this option and restart the computer to check the result.
Then please reformat the drive and reinstall Windows Vista.
The issue can also occur if Windows Vista is fully supported by the computer. Please let me know the brand and model of your computer.
Hope it helps.
Best regards,
Tim Quan
Microsoft Online Community Support