How to register and reinstall Windows Installer?

February 26, 2006

To re-register the Windows Installer

1) Verify location of the Msiexec.exe file on HDD and Registry
    C:\Windows\System32 (for HDD)
    HKLM\SYSTEM\CurrentControlSet\Services\MSIServer
    (ImagePath == c:\Windows\System32\Msiexec.exe /V)

2) Start the computer in safe mode
    msiexec /regserver (start >run)
    c:\windows\syswow64 msiexec /regserver (for 64bit OS)

3) reboot to standard mode 

Reinstall the Windows Installer

Create a File called MSIFIX.bat with the following content

attrib -r -s -h %Windir%\system32\dllcache
ren %Windir%\system32\dllcache\msi.dll msi.old
ren %Windir%\system32\dllcache\msiexec.exe msiexec.old
ren %Windir%\system32\dllcache\msihnd.dll msihnd.old

run this file and then reboot 

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2 Responses to “How to register and reinstall Windows Installer?”


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