Can anyone help me please? I am a user with intermediate knowledge - I know what I have learned by using the computer! My pc has slowed right down to the point that it is quite difficult to use. I notice the problem even more in the evenings from about 7 p.m. Quite often IE hangs and I have trouble loading anything else or shutting anything down. I have Process Explorer but can't see anything obvious eating up my processor. I run AVG free as my virus checker and Zonealarm free as my firewall. I have run malwarebytes and hijack this and removed several adware files but the system is still painfully slow. Can anyone help me understand what is causing this please?