After my most recent automatic update I now receive 'Error 1402: Setup cannot open registry key' when trying to open MS Office products. I have had this cpu for 2 years with no problems. I have not added/deleted any software. My system info:

OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer Microsoft Corporation
System Name YOUR-78498C7718
System Manufacturer Gateway
System Model MX6445
System Type X86-based PC
Processor x86 Family 15 Model 36 Stepping 2 AuthenticAMD ~1790 Mhz
BIOS Version/Date Gateway 68.04, 1/24/2006
SMBIOS Version 2.31
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)"
User Name YOUR-78498C7718\Owner
Time Zone Eastern Daylight Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 420.34 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 2.26 GB
Page File C:\pagefile.sys


Thank you!

There's a two-year-old Microsoft Knowledge base article about this. Follow the instructions here and see if you can't fix the problem. If you can't, post back with what happened and we'll help you further.

You receive an error message when you install an Office program or open an Office program or document (http://support.microsoft.com/kb/838687)