Get rid of your virus scanner… and Windows.

On Windows, your virus scanner is constantly scanning every file your system accesses. This is causes your system to slow down significantly. I do not think you should run Windows without a virus scanner, but maybe you  should just not run Windows. On other operating systems you may not need a virus scanner. Apple’s OSX or Linux are mostly run without one and this is relatively safe. I honestly do not know why. Maybe because Microsoft Windows has a market share of over 80% while others are below 10% and low market share might cause slow spread (of the virus)