While using Windows 7 as DVR, you will come across instances that might seem technical to you. The FAQs have been designed keeping in sight all the possible issues that you can possibly come up with while using Windows 7 DVR:

Tuner not found error displays even when the card is attached:

This error mostly persists if you do not have a TV tuner, or the TV tuner that you have installed is not properly installed. The best way to deal with this is to reset your TV tuner card. In case you are using a USB TV tuner card, you can easily plug out and plug in your TV tuner USB to sort this issue. In case you have got an internal TV Tuner, make sure that you have inserted the TV tuner card into the right position in the PCI slot and the card is well intact with the PCI slot. Remove and re-insert the card and see if it is working. In case, none of these tricks work, you need to check your card if that is working in fine tone or not.