This post is more of a “note to self” than anything else. I spent good part of today fighting against my MacBook Pro, trying to install Service Pack 3 for Windows XP (Bootcamp partition).
After a few hours of frustration, I found this link buried in Apple’s support site that contains a workaround.
The meat of the problem is a driver that makes HFS partitions readable in Windows, and the fact that SP3 sees them as the main partition and tries to copy SP’s files from there.
The fix is trivial, just find AppleMNT.sys, rename it to something else, restart the system, install SP3, rename the file back to the original name and the problem is solved.
Thanks Apple, now if you made the kb article a BIT easier to find, that would be awesome.