Fix MSI Installer or Windows Update Causing Explorer Stopped Working and Restart in Windows 7

When installing with Windows Installer(MSI), or when launching Windows Update or Microsoft Update in Windows 7, the installer and WU may crashes, halts, stops working, returns error, and causes Windows Installer or Windows Explorer to stop working with a “Windows Explorer has stopped working” or “Windows Installer has stopped working” dialog box. Installation or attempt to go to Windows Update fails.
The cause of the Windows Explorer crash and MSI failure is possible related to SQM Client, which is part of the Customer Experience Improvement Program (CEIP). Under the default setting, where MachineThrottling is enabled in the registry, any calls to WinSqmStartSession in ntdll.dll file will cause Explorer to crash, or Windows Installer installation to fail.

There are two methods to Fix this Problem:
Method 1:
Just remove and delete the MachineThrottling registry entry from system registry. The MachineThrottling registry entry is located inside the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SQMClient\Windows\DisabledSessions
Alternatively, just download the Win7-Explorer-Fix.zip, unpack and run the Win7-Explorer-Fix.cmd as administrator to automatically delete the registry key away.
Method 2:
If the above method does not work, try to disable the Windows Customer Experience Improvement Program for good. To disable CEIP, start Local Group Policy Editor (gpedit.msc), and then go to Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings. In the right details pane, double click on Turn off Windows Customer Experience Improvement Program, and then select Enabled radio button.[Via Digital Life]
Written by ShaDow on January 20th, 2009 with no comments.
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