GPO tool

Group Policy made searchable

A free ADMX browser or comparison tool for IT administrators.Search policies, find registry keys, and see exactly what each setting writes to the Windows Registry. Or compare two GPO backups to see exactly what has changed between them.

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Enforce upgrade component rules

This policy setting causes the Windows Installer to enforce strict rules for component upgrades.

If you enable this policy setting, strict upgrade rules will be enforced by the Windows Installer which may cause some upgrades to fail. Upgrades can fail if they attempt to do one of the following:

(1) Remove a component from a feature.
This can also occur if you change the GUID of a component. The component identified by the original GUID appears to be removed and the component as identified by the new GUID appears as a new component.

(2) Add a new feature to the top or middle of an existing feature tree.
The new feature must be added as a new leaf feature to an existing feature tree.

If you disable or do not configure this policy setting, the Windows Installer will use less restrictive rules for component upgrades.

Registry Information

VendorMicrosoft
ProductMSI
CategoryWindows Installer
Applies toComputer Configuration
Supported onWindows Installer v3.0
Registry Key[HKLM]SoftwarePoliciesMicrosoftWindowsInstaller
Value NameEnforceUpgradeComponentRules
TypeREG_DWORD
Enabled value1
Disabled value0