My TV tuner (an Avermedia A859 Pure DVB TV card) has stopped working in my HP Touchsmart 520 now that I have upgraded from Windows 7 to Windows 8 and 8.1. When trying to watch TV using Media Center, I get the error message 'no TV signal found'. After much fault finding, I can get it to work as long as I turn-off Microsoft Defender. As part of my fault finding, I found the same issue with Windows 7 as soon as I installed Microsoft Security Essentials. It seems that the Firewall in these two programs is preventing the TV tuner from finding terrestrial TV channels. Epson Wic Reset Keygen. I thought that one solution might be to re-install the Avermedia TV tuner drivers but have not been able to find them anywhere.

AVerMedia does not guarantee that all the drivers provided from this website will meet requirements of the users' current equipments or devices and in no events shall AVerMedia bear any liability, whether express, implied or stipulated by related laws and regulations. To set up a HP USB TV Tuner in Windows 7, you will need to: Download and install the HP USB TV Tuner driver Download and install the latest version of TV software.

Whilst I can watch TV as long as I turn-off Defender, it is a nuisance to have to go through this process each time and leaves my PC vulnerable to threats whilst watching TV. Does anyone have an idea how to fix this? The link highlighted here by Barb is for a driver (or possibly driver update) with the reference sp55867. The driver (or update) here is on a Compaq site and is also on the HP site in the Windows 7 section for the Touchsmart 520. The description on the HP site for this driver is that it is an update for the TV tuner to fix an issue of no TV signal found. The problem is that sp55867 would only install when the Touchsmart had Windows 7 as the operating system. I did previously run this driver update when my PC was on Windows 7 and it installed OK. Contemporary Political Ideologies Sargent Pdf Printer.