Comments on: Windows Installer Service Could Not Be Accessed Error During Program Installation

By: Gowtham

Gowtham — Tue, 14 Apr 2009 05:27:57 +0000

Thanks alot, its worked for me

By: Ramesh

Ramesh — Wed, 28 Jan 2009 11:58:34 +0000

I notced that windows installer problem hit my PCs after installing the windows security patches. our analysis finally identifies the root of the problem
This problem can be sorted out by changing the Remote Procedure Call (RPC) service’s logon status to Local service instead of Network service.
We noticed that this particular service’s logon status changed to Network service after the patch updates. Restart the PC and check, it wil work smoothly

By: NOD 32 3.0 anti virus help... - Overclock.net - Overclocking.net

NOD 32 3.0 anti virus help... - Overclock.net - Overclocking.net — Thu, 19 Jun 2008 10:20:36 +0000

[...] and im not in safe mode either. so why is it doing this? and it is 64bit version. Check out this article. It should apply to Vista as well. Keep me updated. I hope it helps __________________ Response [...]

By: Josh

Josh — Fri, 21 Mar 2008 05:35:13 +0000

MSIEXEC /REGSERVER does not work in Vista’s version of installer (Windows ® Installer. V 4.00.6001.0). Check here for a msiserver export: http://www.winhelponline.com/blog/vista-the-windows-installer-service-could-not-be-accessed/

By: sysrq

sysrq — Sun, 13 Jan 2008 18:09:46 +0000

Here is a link to help http://groups.google.com/group/microsoft.public.windows.vista.installation_setup/browse_frm/thread/58ba7bd89953470b/1d44e604d42dee5e?tvc=1#1d44e604d42dee5e

If link not work: (here is an extract; credits to “The CAT”)

Here’s the easy steps:

1. Go to your friend’s computer with a Windows Vista (Any Version) that has the Windows
Installer service running correctly and run regedit(Start-Run-Regedit)
2. Go to the location
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\msiserver
3. Right click on this key and select “Export” and save the key to a Flash
Drive or other.
4. On your Damaged machine, Run/ Double click saved .reg file (from working machine) and import registry
settings into damaged Vista computer.
5. You should be set to resume your normal life.

*****
Some notes:

If you cant get your own reg key from a friend running vista, then you
could try and use the “clean reg key I used” download here:
http://www.savefile.com/files/1315653

Note the file is about very small (about 6.7 kb), I named it :123.reg

Take care.

By: Thomas

Thomas — Sat, 12 Jan 2008 15:02:17 +0000

Thanks a lot for this, I managed to fix an issue I had after using Combofix to remove a virus called CMIII that stopped me from installing any applications.
I just used msiexec /unregister and msiexec /regserver to fix my problems, also had to set the windows installer service to automatic startup.