Comments on: How to fix “The Windows Installer service could not be accessed” error

By: loopea

loopea — Tue, 24 Jan 2012 17:29:22 +0000

Thank you so much for this! Tried everything else suggested on all other sites but had not tried the RPC service. Worked like a dream! Thank you so much!!!

By: nevergiveup

nevergiveup — Tue, 15 Mar 2011 22:55:03 +0000

I'm running Vista Ultimate 64 with all the software updated. I tried to fix this problem and after exhausting all of the above recommendations and still experiencing the problem, I downloaded iTunes to a folder and installed it successfully from there.

I've visited several websites with most of the recommendations here also found on the other websites. However, the presentation here is simple and easy to follow. Thanks "helpdeskgeek.com" for making this frustrating experience go down easy. I hope my info is of help to others.

By: thirdstrand

thirdstrand — Tue, 08 Mar 2011 17:08:24 +0000

YES!! Just trying to install a part of iTunes (don't need iTunes on this system) called Bonjour and was getting the same dreadful message. I have an HP Ultimate Vista 64 machine. cminniect's advice worked for me after many other failures. Thank God!!! – and cminniect of course. :)

By: Naitsirhc19

Naitsirhc19 — Fri, 28 Jan 2011 14:12:48 +0000

Thanks cminniect!!!!! The registry fix was AWSOME, I don't even need to reboot. I just restarted the Windows Installer service and it worked. I was having issues installing .NET Framework 4.5 and couldn't find any solution from Microsoft.

Many Thanks!!!!

By: Ikram

Ikram — Thu, 27 Jan 2011 04:14:46 +0000

Thanks.

All works.

AamLVI17,

Please right click – new – DWORD Value – then, rename with WOW64 and set value.