How to remove Upnow2app.theonlinelive.net pop-up (upnow2app)

Upnow2app.theonlinelive.net is a malicious software seeking to mislead credulous users. Following infiltration, it displays pop-up windows stating that you need to update some software like Java or Flash player. While agreeing on this, you put your system security at risk, as they starts to install diverse kinds of malware and adware.