XP knows nothing about SATA drives. Your work should get their IT staff to help you figure out if you need to change a BIOS setting or load SATA drivers.
Again, XP is very old and is asking too much of today's users. I can't be more specific because you elected not to share make, model, details.
So I was downgrading my PC to windows XP for work reasons. After it installed and it said it needed reboot it rebooted and when it loaded I get the error saying "Error loading OS".
So then I tried installing it again and when I turned the PC on it now freezes on the initial boot screen where it says Packard bell and where it says F2 to enter bios etc.
The screen is completely frozen to the point any button I press on the keyboard and it won't recognize, so I cant enter the bios and the startup CD won't even run