Hello, my name is Marco and I am an Independent Advisor. I will do my best to help you.
Press Windows keys + r and type: appwiz.cpl
Look if you don't have a fishy program in the list of installed programs. If yes, uninstall it
And, try a scan with these two anti-malware
AdwCleaner to clean browser: https://www.malwarebytes.com/adwcleaner/
Malwarebytes to clean pc: https://malwarebytes.com/
Tell me if it cleaned this.
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Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.