In some situations Windows administrator accounts may get the error “The capture driver installation failed” while trying to install the capture driver in Quick Test Professional.
In most of the cases the cause of this situation is the setting of the User Account Control (UAC) mechanism in Windows Vista or Windows 7.
Disabling or turning Off UAC will allow the capture driver to install properly however in large scale QTP installs this could be a time consuming task since the machine will need to be restarted and the UAC settings would need to be set to its original settings.
One option to resolve this is to run QTP using the Windows option “Run as administrator”. To do so simply right-click on the QTP icon on the desktop and select the corresponding option.