Loading settings fails (Access is denied) for domain accounts

Hello!

I reinstalled Windows XP Pro SP3. Local accounts work fine. But domain

accounts do not have access to many files in the c:\Windows and c:\Program

files folders and cannot load a profile. I had given the domain accounts the

administrative rights on my computer. The security tab in the files

properties show the administrative group has full access to the files. But

when I double-click on the files a message appears that the account does not

have the access: "C:\windows\system32\wupdmgr.exe

Windows cannot access the specified device, path, or file. You may not have

the appropriate permissions to access the item."

Uninstalling SP3 allows access to files in the c:\Windows and c:\Program

files folders. But I still get an error "Windows Script Host

Loading your settings failed. (Access is denied.)" after logging in.

How to make domain accounts have an access to the files?

Best regards,

Dima