Hello Bribizz,
From your description of the issue, it may have been caused by an automatic update, a 3rd party application, hardware change, or other. Here are some actions you can take to start troubleshooting:
- Check the update history in your computer to see if there was any change around the time the issue started.
- You may contact the manufacturer of your PC to reinstall the WiDi related drivers, or you may run the Intel® WiDi Update tool to get the generic versions from Intel.