Getting unexpected kernel mode trap error

I have a problem with the Avast internet security.

My computer runs a windows 8.1 and since I have updated from the avast free anti virus to the internet security I get a blue screen error with unexpected kernel mode trap error.

I tried to uninstall all of the avast software and reinstall them and still getting the error.

Thanks

Try the latest beta: https://forum.avast.com/index.php?topic=166576.0