0x80070643 Error Now Installing MSE on XP SP3 Machine

[WSR]

Now the error number has changed:

keep getting error "0x80070643" when I attempt to install Microsoft
Security Essentials.

Running WinXP Professional with SP 3. This is a Think Pad Laptop.

All Microsoft software passes validation.

All these update attempts were done using Internet Explorer v8.0.

I am running with Administrative privilege on a stand-alone PC.

I ran Windows Live One Care Safety Scan and no threats were detected.

I have no firewall except the firewall that comes with WinXP .

I had downloaded the file

mssefullinstall-x86fre-en-us-xp.exe

from http://www.microsoft.com/Security_Essentials/

That file seemed to execute ok. It validated my OS. Then it said it was
installing MSE components, but after about three minutes, it gave me the
"0x80070643". error and suggested I try installing again. After various
"fixes", I've repeated this step with the same results about 6 or 8 times
now.

I guess I fixed the Windows Installer Issue.

[MowGreen]

See: Installation Error 0x80070643
http://social.answers.microsoft.com/...3-ae7d3bc48db5

[Dordem3]

Fixing error code 0x80070643
install Windows Clean up Utiltity if you dont have it install on your system.
Launch the program
A box will pop open with "all user program"
scroll down the list looking for any program containing
"ADWARE, ANTIMALWARE, ANTIVIRUS, MALWARE OR SPYWARE, SPYNET
Click on a (check mark) will appear
select remove

Reinstall the Microsoft Security Essentials... This solution worked after all other options listed on Microsoft solution site and on the web in general Failed...

[PA Bear [MS MVP]]

Or you could see this sticky in MSE SUPPORT FORUM! =>
http://social.answers.microsoft.com/...3-ae7d3bc48db5