Windows Media Center giving me trouble

I had it set and working pretty for a couple years. Suddenly when i try to watch TV it is showing the full page image with distortions. Reducing the image used to be possible by dragging from the edge of the rectangle, now it is stuck minimized.

Is it possible to re-install just the WMC without having to reinstall Windows 7 Home Premium 64-bit?

Read tutorials in here but i do not find a solution.

Could anyone help me by telling if there is a solution to my problem? And which is it with easy steps to get results?

Thank you kindly

Yes. None on Microsoft's site but tons of 3rd party ones :)

Download Windows Media Center (Free) for Windows

First, you don't need to download anything to install/uninstall Media Center. Simply go to Control Panel -> Programs and Features, and then click the link on the left side that says "Turn Windows features on or off". Under "Media Features", un-check Windows Media Center. Click OK, and follow the prompts. Reboot. Then, reverse the process to re-install.

Second and more important, I don't think this is going to solve your problem with what you call "distortions". Your problem is most likely related to signal strength and quality from your antenna or cable.