Windows 7 fix for crashing Windows Installer errors - cannot install or uninstall MSI packages

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Monday, January 19. 2009

Windows 7 fix for crashing Windows Installer errors - cannot install or uninstall MSI packages

I ran into this error earlier today on my laptop and I figured I'd share the fix on here because it might happen to you after you have installed and/or uninstalled many programs on your Windows 7 computer. There is an ongoing discussion in the Technet forums here and a great blog entry with screenshots on how to fix it here.

Long story short, you need to delete the registry entries that may live under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SQMClient\Windows\DisabledSessions.
Hopefully, this will prevent you from uninstalling and reinstalling in desperation to get things working!

Posted by Aaron Tiensivu in 7, Microsoft, Windows OS at 23:58 | Comments (6) | Trackbacks (0)

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How did this issue make it through betas?

#1 Ken on 2009-01-20 18:42 (Reply)

You mean alphas, right? This is the first beta build.

#2 Aaron Tiensivu (Homepage) on 2009-01-20 18:50 (Reply)

Hi Mate

i tried to find it on regedit but i didnt find any on it, but the installer still cannot run

can you please advice?

#3 edo on 2010-01-31 02:34 (Reply)

Dear Aaron,

Some people told me to go in cmd as administrator and delete it.
And also to go to regedit and rename the MachineThrottle to _MachineThrottle.

But when i go into regedit i cant rename the 1 file there is.
It doesnt have a name or anything.

I dont know what to do..
Can u help me?

Sincerly,
Arco

#4 Arco on 2010-02-27 12:08 (Reply)

I have the exact same issue, and also nothing but the un-deleteable "Default" registry key at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SQMClient\Windows\DisabledSessions. Did anyone ever find a fix for this?

#5 reverentsentinel on 2010-09-23 17:30 (Reply)

Possible solution: I have seen this posted and tried on 4 Win7 64 bit pc's. They all had the value which I changed and all now are able to install/unintall which they could not earlier. Hope it helps!

HERE IS THE FIX THAT WORKED FOR ME : Start, then Run, then type regedit Go to HKEY_LOCAL_MACHINE\SYSTEM\CURRENT CONTROL SET\SERVICES\MSIserver\WOW64 Right click on WOW64, then select Modify Set Value Data to 0 (mine was set at 1) and Base should be Hexadecimal Close everything, reboot, and see if you can uninstall or reinstall...............it worked for me. Don't bother with Office XP Pro and Windows 7..............it screws up everything.

#6 Jose candelaria on 2010-11-20 11:37 (Reply)

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