Dual boot, cant access data on HD

Shooks

Golden Member
Jun 19, 2001
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I setup a dual boot of XP and Xp-64 on my machine. The XP installation is on a SATA Raid array, not sure if that is relevant. Anyway I am wondering why when I try to access the Documents and Settings\Username folder on my XP partition (while in XP-64) it says Access Denied. I can however access the Documents and Settings\Username folder on my XP-64 drive(while in XP). Is there some setting that I must change, I did not add any secutiry options to this folder. I want to be able to access things that are on the desktop of the XP partition from the XP-64 partition. Thanks in advance!

btw there is only one account for each OS, only the admin account.
 

TGS

Golden Member
May 3, 2005
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The reason for that is the Security IDs on those user accounts are different for the XP and XP-64 edition. You could both run as the administrator account, but XP vs XP-64 would look something like this:


XP:
S-1-5-21-1993962763-413027322-1607980848-519

XP-64:
S-1-5-21-1993962763-413027322-1607983033-519

When the files are checked for permissions, from the XP-64 permissions side, it will see administrator and try to check against the Top SID. It will see you using the Bottom SID from XP-64 and will not allow access.