Repartitioning a Caviar Green 1,5 TB in Win XP

I have repartitioning my wd hd (internal Caviar Green 1,5 TB but in a usb-chassi) in Win XP, and now I don’t think it is working correct (it is slow and many files are corrupt after copied to the drive).

Today I found this page:
And it says that “Western Digital recommends not repartitioning your drive on the Windows XP”.

But what should I do now? I have one computer with Win XP and one with Win 7. Should I repartitioning the hd again but from Win 7 instead, or should I run the WD Quick Formatter Utility or maybe run the WD Align?

Help wanted!

Run the WD DLG application before repartioning your drive again.