This is likely a Windows 8 laptop or tablet, hence the location of the post. Since it is Win8, it is 99% likely to be the version if IE it runs. My guess is that it is NOT a virus (unless you, as do I, consider Windows 8 a virus itself), but MS "monetizing" your browsing habits. So, install and use a 3rd party browser such as Firefox or Chrome, and then install an ad blocker such as AdBlockPlus.
AFAIK, there is also a popup blocker available for Internet Explorer, but how well it will work for you is to be determined. :-)
That's understandable and no we share a very different mind set :D Windows 8 is shite yes but if you dig right it, I mean really get into the cracks and crannies, Windows 8 is still better than Vista! :D
I will however always be a fan of Windows 7 (and a proud user of the now dead XP :D)
I didn't think it would be a virus at all - adware did however cross my mind. Either way check your current installed add-ons/extensions to make sure nothing has creeped onto the list, if there is something there that you didn't install - remove it. If there is nothing there use an AV or run malwarebytes; it's better to be safe than sorry!
I would recommend you choose either Firefix or Chrome for your browser anyway, if you use IE then you deserve to be shot just as much as the developers themselves.