No adapters are listed after upgrade to 3.2 with Npcap; Npcap FixInstall.bat reports error

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Just updated to version 3.2 and installed npcap in the process. Had a version running ok with WinPCap. Windows 7 x64. After successful install no adapters listed. Have reinstalled several times as well as cleaned old drivers/files, installed in safe mode, etc. I ran the fixinstall.bat inside the npcap directory and got an error:

The service name is invalid [SC] Open Service FAILED 1060: The specified service does not exist as an installed service see: net helpmsg 2185

Can't seem to revert to old version. Have tried uninstalling and manually removing drivers.