RagLigW is the name of an application by developer 'Romolo Technology AG'. This application is a rogue antivirus program, and was released in May 2021, after it's release in the public. The software goes about the business of trying to ruin your computers hard drive, and stealing your personal data. It does this by installing itself onto your PC, and then causing all sorts of problems for your computer.
The software was developed to be "shocking and controversial" in that it shows a fake virus alert on your screen, claiming to be from a legitimate antivirus software company. In actuality, however, it's just a virus, and has nothing to do with real antivirus software at all. Once the application has been installed, it will show a series of errors, which you can then click around and try to fix. Although this software might look legitimate, it's strongly advised that you not trust it, as it's a rogue program, and will cause a lot of damage to your computer. If you're thinking of downloading this software, please take caution - the website is phishing for you.
So, why would you want this on your computer? Well, there are a few reasons why someone might want to install this on their computer, or load it onto a system. One reason could be that a website you visit may have this on their site, and you might want to browse some of their material. Another reason might be if you have a website which promotes illegal activity on your computer, such as music downloads - you wouldn't want this blocking your access to your site, or preventing you from listening to the content.