Memz is a virus that basically will ruin your entire computer and make it unusable. Memz and other viruses as well are very dangerous for your computer. You should generally stay safe and avoid viruses by being safe on the internet. That meaning, don't click on website links that doesn't seem trusty, so the url is long, the website isn't secure, or you just don't know where the link will take you. In general, do not go to sketchy website and don't download something seems to good to be true, because it probably is.