Question:
When I try to install Microsoft Security Essentials (MSE) on my new Windows 7 laptop, a HP EliteBook 8530w notebook computer, BUT it fails with the following error:
0x8007064A
Can you help me install MSE?
Answer:
The HP EliteBook 8530w is a great laptop, but a few of them seem to present the error code 0x8007064A when trying to install MSE.
If you have REMOVED any other pre-loaded Anti Virus programs that may have come with the laptop, and then re-booted and STILL get the error 0x8007064A
The following registry key should be deleted:
[HKEY_CLASSES_ROOT\Installer\Products\HP_Preload_Dummy]
This should NOT be in the registry!
Hope this helps with the error 0x8007064A
Kind Regards
Marc Liron
Microsoft MVP
www.Win7Articles.com

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Wow, that helped me. Been looking for a 0x8007064A solution since days. Thank you, thank you, thank you
Worked! for the 0×8007064A error on my HP Elitebook 8530p
Cool! Thanks! I have been trying quite a few tricks without success… I also have problems installing/updating .NET Framework 1.1 on this machine. not sure if related as well.
I have HP 2530p with this problem and I removed the preloaded Antivirus and used Symantec AV for a while and decided to go with MSE.
TNX IN MY HP ELITEBOOK 8730W
WORK PERFECT
Excellent! Never solved my problems on Vista that fast before!
Many thanks
Thanks, this solved my problem on an Elitebook 6930p
I tried a dozen things to get ANY Anti-virus program installed, if only this simple answer ranked higher on Google. It worked quick & simple! Thank you.
Thank you very much. Working on 8530p;)
Thanks Marc!
Thanks, it really works on my 6930!
Worked on my HP 2530p win 7 like a charm
Fantastic, worked on my HP EliteBook 2530p! Much thanks! – Bruce