When your computer gets this warning message, don't you ever call that number for they will let you install some apps and access your computer to steal everything inside, passwords, private keys, and any other important things.
When I was watching some youtube videos, I see some videos pertaining to this kind of scam where people randomly get this warning message (Warning! your computer is infected call this number) as if it's true. newbies who are not familiar with this kind of fraud will be fooled with this message as I've seen in the video, there are lots of people who actually fell to this scam. when they start to call the number on the screen, the scammers will take their moves and manipulate the victim's computer to make them believe that there was something wrong with their computer and to be able to fix that, they need to pay a 1-time fee.
The truth is, your computer is infected with some kind of malware that the scammers have made and you can actually remove it without paying.
there are lots of ways to remove the malware successfully and one of them is the step by step on this site:
https://windowsreport.com/fix-pc-status-at-risk/
The other thing is, you need to install some trusted anti-virus to prevent this kind of malware from entering your computer.
If you want to see some videos where these scammers got busted, you can see it here:
https://www.youtube.com/watch?v=le71yVPh4uk
Let's hear what our veterans' members say about this fraud and some tips from them would help us a lot.
Edit: by reading most of the replies of our trusted members, I decided to edit my thread to make it safe as much as possible. right now, the step by step guide doesn't require you to do risky moves.