I have tried to roll back an HP Pavilion s3100n from Vista to XP, by reformatting the HD using an Acer reformat disk. That seems to work fine. I used a FAT32 strusture and created a partition large enough for installing XP from an original Windows master disk. I still get the "Load INT15 driver error at X:int15.sys" message and it hangs up during booting. How do I install the appropriate drivers (other things needed?) and where do I get them?
Thanks for your help.