Q. When you right click on an INF file, the Install option is not listed?

The Install option is controlled by a inffile File TYPE entry in the Classes key at HKEY_LOCAL_MACHINE\Software\Classes\inffile

Here is a Save Subtree As:

Key Name:          SOFTWARE\Classes\inffile\shell
Class Name:        <NO CLASS>
Key Name:          SOFTWARE\Classes\inffile\shell\Install
Class Name:        <NO CLASS>
  Name:            <NO NAME>
  Type:            REG_SZ
  Data:            &Install
Key Name:          SOFTWARE\Classes\inffile\shell\Install\command
Class Name:        <NO CLASS>
  Name:            <NO NAME>
  Type:            REG_EXPAND_SZ
  Data:            %SystemRoot%\System32\rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 %1


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