> I am now wondering whether my Vista computer somehow corrupted just one
> folder on my portable hard drive, even though my XP computer could still
> access the portable hard drive without difficulty. It was time consuming to
> recopy all the 100 gig of files into a new folder, but at least it has
> worked.
The Vista computer did not corrupt the folder. The problem is that XP set
the permissions on the folder to only Administrators. That works well on XP
because virtually every user is member of Administrators and so can access
it. On Vista, even if you are a member of Administrators you cannot actually
access resources as them without jumping through certain hoops. Jimmy's
work-around basically just jumps through the hoops for you. This is how Vista
is designed. if you are interested in why, Mark Russinovich's UAC article is
a good, although very technical, read:
http://www.microsoft.com/technet/tec...C/default.aspx.
You may find the book below useful too.
---
Your question may already be answered in Windows Vista Security:
http://www.amazon.com/gp/product/047...otectyourwi-20