Comments on: McAfee 8.7i, Error = 0x7d1 : The specified driver is invalid

By: Shawn

Shawn — Sat, 21 Aug 2010 13:46:46 +0000

Thank you so much, this fixed my issue. Whew! I spent quite a bit of time trying to get this figured and then decided to look online. I found your article, 2nd hit.

By: danisse

danisse — Sun, 09 May 2010 02:09:45 +0000

Awesome dude, this solve my problem. After a couple of install/reinstall processes, I decided to check over the internet and found this complete instruction guide about the issue.

Tanx.-

By: Paul M

Paul M — Mon, 15 Mar 2010 14:57:29 +0000

Not helped here, sadly.

Fairly sure mine is related to a user rights assignement prv being removed or restricted via GPO. When I remove the GPO link the engine service fires up without an issue.

Trying to work out the deltas in this policy but most just look identical with additions so it’s not going easily…

By: joby

joby — Thu, 15 Oct 2009 13:29:02 +0000

thanks for your help . its working

By: manish

manish — Fri, 18 Sep 2009 07:17:53 +0000

TOO Good Solution IT worked for me

By: E-Tom

E-Tom — Tue, 04 Aug 2009 17:58:43 +0000

Thanks a lot for this workaround!
I lost hours by trying to solve this problem.
When I tried to upgrade a Win2000 Server from VirusScan 8.5 to 8.7, I first uninstalled 8.5, because it caused errors to upgrade directly from 8.5 to 8.7. After uninstalling 8.5, I coudn’t install 8.7, he coudn’t start McShield service. Setup told about missing rights to start services. After changing the registry entries, setup could finish!
But now I’m really hacked off about McAfee. This is not the first bug they produced, not to mention the bad performance and the permanently disk access…

By: Ravi Kurian Joy

Ravi Kurian Joy — Sun, 02 Aug 2009 12:38:55 +0000

Thanks for the explanantion. Saved me hours of R&D. Solved the issue straight away

By: Jesse

Jesse — Fri, 31 Jul 2009 14:55:19 +0000

Another thing to try is to browse to Local Security policy under start –> control panel –> administrative tools –> Local Security Policy…

By: Devendra

Devendra — Mon, 27 Jul 2009 00:50:36 +0000

Thanks. This tip was very useful. It helped me get my McAfee started.

By: Babak

Babak — Sun, 26 Jul 2009 17:28:46 +0000

Thanks men your cool