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Trying to unintall "kernel32::GetLongPathNameW(w R8, w .R7, i 1024)i .R6\uninstall\helper.exe"

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Trying to install firefox on alternate drive but cannot uninstall multiple entries for 7 versions. Registry shows install location and uninstall with the "kernel32::GetLongPathNameW(w R8, w .R7, i 1024)i .R6\uninstall\helper.exe" in each entry of the registry. When try to uninstall from control panel get message Message "you do not have sufficient access to uninstall xxxxxx"

Trying to install firefox on alternate drive but cannot uninstall multiple entries for 7 versions. Registry shows install location and uninstall with the "kernel32::GetLongPathNameW(w R8, w .R7, i 1024)i .R6\uninstall\helper.exe" in each entry of the registry. When try to uninstall from control panel get message Message "you do not have sufficient access to uninstall xxxxxx"

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Try to right click and choose to run as the Administrator, sometimes that helps. You might also find help in the Microsoft forums:

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The cleanup utility has been discontinued and the replacement didn't help. It asked for product codes. I have tried to find product codes for

  35.0.1, 36.0.1, 36.0.4, 39.0.3, 40.0.2, 40.0.3 with no success