I have Vistas premium home version 64 bit. I am running Internet Explorer 8. For the last 2 days my computer has been extrememly slow and I keep getting these little notices along the lower screen saying things like 0% of 20%Review%20Edmonds, and it's called an unknown file from s3-us-west-2.amazonaws.com and it asks if I want to run or save the file. And there are a whole bunch of different ones that pop up at different times. I have scanned several times with updated free version of Malwarebytes and it does find some bad stuff which I remove. Microsoft Security had a red warning up yesterday for me and it kept saying that Microsoft Security Essentials wouldn't start so I kind of got that going again but after I did that, other wacky things started happening. Basically, the computer is just running very slowly. Any help would be appreciated but I would need very specific directions to follow as I'm not overly computer savy. Thanks in advance for any help.