Sounds like you have a virus, especially since you are seeing effects while in Outlook. There are several free virus checkers, I will let others provide the details, as I use a paid security suite. I think I am familiar with the "update driver" situation. This happens as many sites, as they are an advertiser, and when you click on the ad they install some software on your computer. Did this once, and it took me some time to find the software and remove.
If you are computer savvy, you can go into SETTINGS (note I am assuming you are using Windows 10), click on the GEAR symbol, and in the search box type add remove programs, you should get a list of all of the software installed on your computer, arrange by date, and look at what was installed recently, click on the offender, and then uninstall.
Hope this helps.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.
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