Recently I've got a message from Hauppauge. Their advice looks like deep re-installation and I have doubts if it could help. I don't try it yet. Their advice is:
Go into the device manager and uninstall the drivers and driver software for the HVR under the sound video and game controllers section.
Shut the computer down and then take the card out of the PC.
Turn the PC back on and then once Windows has booted check for any Windows Updates.
Can you then shut the PC down and put the card back into the PC and boot it up.
Once Windows has loaded can you manually check that you have all of the latest Windows Updates installed and then download and install the drivers from the WinTV 10 download:
https://s3.amazonaws.com/hauppauge/wintv10/wintv10setup_38321.exe
Cancel the WinTV application updates that asks you to enter a activation code and then re-start the computer and check for Windows Updates and then try again.