Error found: Code 0x80070002

Anyone know what this means? And does anyone know how I can fix it???

Thanks.

Is this a Dell PC??? Look here.

http://support.microsoft.com/kb/310794

hmmmm no, it isn't . . . it's a eMachines 2002 computer with windows home XP.

but i'm not get this error when i start my computer, i'm getting it when i try to search for updates for window's defender.

i don't think i've done anything different to my computer lately . . . i stopped some startup services in msconfig like 2 weeks ago and run malwarebyte's trojan removal program, as well as installed a "ghost" drive so that i could play games without putting the CD in the cd-rom drive, but that was like 2 months ago now . . .

not sure what to do here.

Download and install the Windows Installer CleanUp Utility - (it will list all programs that use Windows Installer).

• Double-click on msicuu2.exe and click "Next".
• Accept the license agreement, click "Next", then click "Next" again.
• Click "Finish" when done.
• Go to Start > Programs and click on Windows Install CleanUp to launch the program.
• In the list of Install Products, check to see if "Windows Defender Signatures" are listed.
• If so, highlight that entry, then click on the "Remove" button.
• Reboot when done.
• Then go to Microsoft Update, do an express scan, and see if you can now apply the update.

Note: Until the issue is resolved, you can manually download Windows Defender Definition updates from the Microsoft Malware Protection Center Portal.

Also see How to troubleshoot definition update issues for Windows Defender.