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Registry Location for Windows Installer Settings

Updated: 27 Jan 2009
MaggieH's picture
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These keys hold all the information of all Windows Installer products and components that are installed on your workstation.

  • [HKEY_CLASSES_ROOT\Installer]
  • [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Installer]
  • [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer]
ALLUSER Value Install Type Registry Location
0 Per User HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-xxxxxxxxxx-xxxxxxxxx-xxxxxxxxx-xxx
1 Per Machine HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18
2 Per user or machine (this depends what users rights the installing user has) HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-xxxxxxxxxx-xxxxxxxxx-xxxxxxxxx-xxx
    or HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18