Risk in updating internet browser
If you don't use the latest version of your web browser, you're probably missing out on some of the latest features.
Many websites (including very big ones like Gmail, You Tube and Facebook) have stopped supporting older versions of browsers.
Furthermore, these rogue programs track web browsing activity and often display intrusive online advertisements.
The "Your Computer May Be At Risk" error states that the system has crashed.
Another downside is display of intrusive online advertisements.
Pop-up, banner, coupon, and other similar ads are displayed using a ‘virtual layer’ (a tool that enables placement of third party graphical content on any site).
Developers know that users often rush the download/installation processes and skip most steps.
Therefore, bundled programs are hidden within the "Custom/Advanced" settings of these processes.
You can help by encouraging your friends and family to keep their web browsers up to date as well.
Potentially unwanted programs are designed only to generate revenue for the developers and they provide no value for regular users.
PUPs collect personally identifiable information, display intrusive ads, and often cause unwanted browser redirects. Some PUPs have official download websites, however, most are distributed using a deceptive marketing method called "bundling".
Anti Virus software is a necessity these days as well.
Some web browsers (such as Chrome and Firefox) have an "Auto-update" feature enabled by default.