Cannot reinstal Windows7 - cannot retreive disk information

Hi all, i am hoping someone can help me with this issue.

I have been running windows7 for a while now but decided to format my computer.

i have tried both reinstalling windows as a fresh install and upgrading from xp sp3 but i get a error message:

Windows could not retrieve information about the disks on this computer.

I have red some threads about this but none seem to work.

1. more than 2GB memory can spoil the install: so atm i am only running 2GB ram.
2. enabling the virtual drive: not listed on my PC.
3. populate the disk info via device manager: info is populated but as soon as i click OKAY, the info dissapears. i have tried populating then upgrading to windows7 but still get the same error message.
4. Disconnected all other Harddrives, including CD/DVD drives
5. Tried using different CD/DVD drives including a new one.
6. Set Bios back to Default settings.

At the moment i have gone back to Windows XP SP3

could someone please help me resolve this.

Thanks
Vince

Hi, i get the message straight after the setup files are installed.

i dont even get to step 3 on that guide.

yes i am using a dvd, i run the disc and it says something about installing files and then i get the error message.

sorry you are right, it is not step 3.

when booting off the disc the message pops up after i pick after step 6.
if i try and upgrade from xp, it says something about installing or running setup and then i get the error message.

I did format and re-partition the first time. all other drives are disconnected.

the main drive is a western digital sata which is about 120GB, but i have it partitioned @ 60gb each.