This policy setting allows you to configure the number of seconds Windows waits for a device installation task to complete. ...

This policy setting allows you to configure the number of seconds Windows waits for a device installation task to complete. 

If you enable this policy setting, Windows waits for the number of seconds you specify before terminating the installation.

If you disable or do not configure this policy setting, Windows waits 300 seconds for a device installation task to complete before terminating the installation.