(KNZA)--Pop up messages on personal computers, demanding that a phone number be called in order to fix computer related problems, are not legitimate. 

Instead, David Schmidt with Chromium Computers and Technologies, of Hiawatha,  says it's another rip-off scam and the phone number should not be called. “Those advise you to call a certain number—usually a 1-triple eight number,” said Schmidt. “When you call that number, they’ll tell you they’re certified Microsoft technicians—when they are not. They’re asking you to give them money to then fix problems inside of your computer that likely do not exist.”

Schmidt says those who have fallen for the scam need to take action, while those who receive such a message should not respond, but make evasive maneuvers. “They’re best bet is to immediately shut down the computer and restart it,” Schmidt said. “If they’ve already have had the person into their computer, I recommend they immediately call their bank and have the bank re-issue a new card for them. Also see if they can dispute their money.  This is what we call ransom wear on the computer.”

Along with the pop-up messages, phone calls are being received, with the caller claiming to work for “Windows,” which is not even a company, but a product. They claim the call is made to remedy computer problems that don't exist, and authorities say such calls are being made to gain financial information. Nothing should be given to the callers, and instead, those called are told to simply hang up the phone.