: Open Device Manager , right-click the unidentified video controller, and select Update Driver Software .
Ensure the DVR software you are using (e.g., NetVision, SuperDVR) is also 64-bit compatible, as the driver alone will not work without a matching application. dvr card techwell tw6802b driver for win 7 64 bit hot
Since these legacy cards often appear as "Multimedia Video Controller" with a yellow exclamation mark, you must install them manually through the Device Manager Microsoft Learn Open Device Manager devmgmt.msc , and press Locate the Device : Open Device Manager , right-click the unidentified
: Many available drivers (such as version 6.0.0.9) are designed for 32-bit systems. Standard 32-bit drivers will not function on a 64-bit version of Windows 7. : Open Device Manager