Resolved Power cut while installing Win7pro64 - where are the temp files?

I finally decided to bite the bullet and upgrade my PC to Windows 7 Pro 64bit, but right in the middle we had a power cut & my system crashed after the battery on my UPS expired!

Now Windows 7 installation keeps giving me error messages and saying it can't continue, yes after umpteen reboots & tries.

I can still get into XP as that is installed on a different drive.

So my system at the moment has 2 500Gb SATA drives, both partitioned to 75Gb (system) & 390Gb (Data).

Channel 1 M system: is Windows XP SP3 32-bit. Runs ok.
Channel 2 M system: is where I tried to install Windows 7 & failed.

I have re-formatted Channel 2 M system to get rid of the Windows 7 files, to try a clean install BUT i don't know where all the temporary files are on the Channel 1 drive - currently XP.

The system boots provided I tell it to load "older operating system" rahter than Windows 7.

So how do I get rid of the Temporary files and everything else to do with Windows 7 so I can carry out a clean install?

OR would I be better off in formatting Channel 1 as well and reinstalling XP?

I would appreciate any help you can offer. Thanks

 

Thanks Arie. Going to try the XP boot first.