Over the last 5 days or so, regardless of which browser I use, I have been getting a pop up menu saying I have a computer error and can have a free scan to correct the error. In trying to close the window it takes over my browser window and says to click OK to start the free download. There is a cancel option but after cancelling the offer reappears. I force quit out of the browser to clear the deck. Has anyone else experienced this irritation? What action to stop it?
Merv
--

1:block pop ups

and/or

2: don't visit sites that pay for their service fee with such advertising

this is not an error message this is a common scam/advertisement/bait.

the dead giveaway is the popup is formatted to look like a Winblows dialogue box