When exactly and what error code?
The easiest thing would be to start from a scratch. Reformat the USB disk and prepare it again. Replace the files and lines mentioned. Report what errors do you see and when exactly.
I am thinking that BIOS sees the USB disk as a superfloppy/zip disk, hence the problems. But let's first rule out any interventions.
What hardware are you installing to? Motherboard or laptop model? Using what USB disk?
I've gotten Error 11 on second time with a different hdd plugged in. The first time, I booted it up to test the program, I seen XP install blue screen, so I was like ok, it works, I shutdown, removed two hdds and plugged in the one hdd I wanted XP on, this is when Error 11 took place.
After editing everything then I got Error 15 even just with the hdd I wanted xp on, plugged in.
(A). I started a fresh day restarting from scratch, unplugged everything except the hdd I installed too and the USB card reader too SDHC Class 6 flash card.
With the procedure (A), I've managed to get XP installed on too my hdd.
Suppose the program will have to be redone for every new install of xp.
Thanks, ilko_t for the help .