The VR-50HD are usually auto detected as a webcam device. There is no drivers that need to be pre-installed before using it with a computer to capture video. In the case where you have issues with your computer not recognizing the VR-50HD as a a web cam, it's possible that your computer does not meet system requirements.
Here's info on the system requirements:
SYSTEM REQUIREMENTS
OPERATING SYSTEM
Microsoft(R) Windows(R) 8 / 8.1 32-bit Edition
CPU / CLOCK
When recording data in the HD size, use a personal computer in which the third generation (Ivy Bridge) Core i5 or newer series and a USB 3.0 port are installed.
* This software has been found to work on typical computers that meet the above requirements, but we do not guarantee that it will operate on all such computers. Please be aware that differences in design or conditions of use may produce differences in the processing power of otherwise similar computers.
* Microsoft and Windows are registered trademarks of Microsoft Corporation.
* All product names mentioned in this document are trademarks or registered trademarks of their respective owner