spysweeper,superantispyware ,malwarebytes are not functioning in current updates

I updated my firewall to the last 2 current updates and spysweeper,
superantispyware and malwarebytes are not functioning. When doing a scan it freezes after the first few minutes. Malwarebytes hung on a scan and spyweeper and superantispyware scan a few minutes and freeze. This happened on the first update as well as the current upsate that was meant to fix the problem. Went back to version 3.5 for the second time and all is well.