Access denied XP SP2 update on Home

From: Tony Girgenti (antoniongirgenti_at_comcast.net)
Date: 04/09/05 

Date: Sat, 9 Apr 2005 17:08:54 -0400

Hello,

When i try to install XP SP2 on a Home edition, I get the attached error.
If the attachment is not viewable, it says
"Service Pack 2 Setup could not backup registry key HKCR\CEnroll.CEnroll to
file C:\WINDOWS\$NTServicePackUninstall$\reg00245. 5:Access is denied."
With Abort Retry Ignore buttons.

 Ignore later gives an error "Access is Denied" and the install is
terminated and uninstalled.

Any help with this problem would be greatly appreciated.

Thanks,
Tony