Registry Location for Windows Installer Settings
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 |
