Installation may fail with the "Windows Installer Service could not be accessed" error

Last published : Jun 12, 2026
This issue occurs if the Windows Installer Service is not accessible during the installation. Since the service is not accessible, the installer fails to proceed with the installation. (2497344)
Workaround: The Windows Installer Service is a native component of an operating system. Typically, the Installer Service inaccessible issue occurs, if the service is damaged or unregistered and thus repairing the operating system installation serves as a workaround.
For more details on the workaround, refer to the following Microsoft knowledge base article:
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