Sorry, but this is the first one for us. Just double-checked, and it doesn't looks like you're in any of our databases.The only thing I can suggest to check your browser and change your default startup page.
@Matt
Looks like i've solved my problem, i've uninstalled 3 recent programs i had installed in last 3 days: Etcher, win32diskimager, SD memory card formater. And it stopped. I am 100% sure i've untagged all standard "adware" options during my installation, but i guess something went trough. Am i correct to assume you guys are affiliated with one of those companies since uninstalling those fixed it?