Symptoms

Dell PowerPath for Windows installation fails with error message: 0x800401f4 - Error in ::IDFromString: Invalid interface string ### Bootstrapper.log 2019-10-30 15:05:31 --- Loaded 3 supported component(s) 2019-10-30 15:05:33 Error: 0x800401f4 - Error in ::IIDFromString: Invalid interface string 2019-10-30 15:05:33 EMC PowerPath installer finished, return code=-1

Cause

The issue is seen when there are invalid registry keys exist under HKEY_CLASSES_ROOT\Installer\Products. In this example, there were keys which starting with _(underscore characters) instead of numbers.

Resolution

To resolve this issue: Run Regedit as Administrator accountRequest the customer to export the keys starting with the underscore "___" in HKEY_CLASSES_ROOT\Installer\Products\ from the affected server.Delete those keys.Run the PowerPath installation again

Support Cases