If you have MSI logging enabled, the following lines are found in the log:. Couldn't find local patch ''. Looking for it at its source. MainEngineThread is returning However, serious problems might occur if you modify the registry incorrectly.
Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. To download the tool, visit the following Microsoft Web site:. Windows Installer uses the registry to record information about updates installed for each Windows Installer-based product. These registry keys help identify the state of each update: registered, applied, superseded, or obsoleted.
Information about installed updates is stored across several registry keys and values. To allow for the product to be in a serviceable state in which it can be repaired, updated, or uninstalled, it is critical for the data in these registry keys to be synchronized.
When the data in these registry keys is no longer synchronized, maintenance mode operations cannot be performed on the product. The Patch Registration Cleanup Tool helps resolve some issues that are related to invalid or corrupted update registration. This tool lets you bring the product back to a known state so that you can reinstall updates. Windows Installer stores information about each Windows Installer-based product under the following registry subkey:.
Information about the updates that are installed for the particular product is recorded under the following Patches subkey:. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.
Privacy policy. This article provides a solution to an issue that repairs or uninstalls for certain products may fail after you install software updates. After you install software updates, repairs or uninstalls for certain products may fail. If you have MSI logging enabled, the following lines are found in the log:. Couldn't find local patch ''. Looking for it at its source.
MainEngineThread is returning NET Framework 4. Update type: Important A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft.
For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article. After you install this update, you may have to restart your system.
Update type: Important A security issue MS has been identified in a Microsoft software product that could affect your system. You can protect your system by installing this update from Microsoft. I did repair Microsoft. Net Framework but it still updating and failing when I turn off my pc.
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