My PC running Windows 7 Home Premium Service Pack 1 has begun to run very slowly and constantly says to close programs because I have low memory. I have checked in the task manager and under the processes tab I find several processes running that really should not be. I can "end Process" for each of them from the processes tab of the task manager but they always come back and use more and more memory until the fan starts running and everything slows down to a crawl. The tasks include iexplore.exe *32 at 158,500K, same one again at 153,180K, explorer.exe at 40,408K, dvm.exe, McUICnt.exe, iexplore.exe, MXTask2.exe, taskhost.exe, winlogon.exe, taskmgr.exe, SynTPEnh.exe, taskhost.exe and a few others. In many cases I will look at it and several instances of these same processes will be running. I have run several scans with Mcafee and Malwarebytes which did not seem to help at all.
Also when I try to download something I get a pop that says "Your current security settings do not allow this file to be downloaded". Even if I am just trying to save a photo online it does this.
My screen intermittingly flashes as well.
Any help you can give is much appreciated. Thank you