I'd wipe the drive clean with DBAN and try installing your FULL RETAIL XP first, get that working and leave space unpartitioned during that install.
I find most can't do this install because drivers are getting rarer as time goes on for XP. Also you still encounter folk that are caught unaware of the XP SATA INSTALL issues. (still well discussed?)
So start over and be sure you have the FULL RETAIL XP and FULL RETAIL Window 7 DVD because that's the supported versions to do this.
Bob
I tried installing XP and Windows 7 on my laptop and now my computer won't boot at all. I get the message "Disk Read Error. Press CTRL+ALT+DEL to restart" and this just keeps looping the same thing. I can't get it to go far enough into a boot to read a Windows installation disc, I can only access the BIOS. Right before this, I could get XP to load, but when it finished installing and restarted, it would try to run the setup again rather than booting the OS. Extremely lost, and any advice as to get rid of the "Disk Read Error" or a multi-boot once I get past the "Disk Read Error" would be greatly appreciated.

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