There are 2 main reasons for unwanted popups/notifications on your Windows machine. Both are related to your web browser -- one type are actual notifications originating from specific web sites. These you can control/eliminate via your browser settings.
The second, and just as frequent culprit, are scripts on web pages that can completely lock up your browser. Sometimes these are accompanied by very irritible noises... with these you often seem to loose complete control of your keyboard/mouse.
It is the first that I will address on this tips page. (See Fake warning 1 for how to edeal with the second type.)
When computer users get notifications on their desktop, like McAfee running out - (when they don't use McAfee). Or other "inappropriate" content -- it is often the fault of a browser notification from some unfriendly website. Sites usually have to ASK you to allow notifications, and sometime we users click OK without realizing what we are clicking. So what do we do about it?
Well, we can either stop all notifications, or we can get rid of specific sites that we don't want... here we go:
If you want to continue to allow sites like Facebook to send popup notifications, then make sure
Sites can ask to send notifications
is checked. If not interested in ANY notifications, then uncheck it.
Most folks just want to eliminate "bad" site notifications, usually that they mistakenly clicked to allow. These can be found near the bottom of the page under:
Allowed to send notifications
The ones causing problems are likely unfamiliar, and/or have strange, garbled URLs. If you want to take a site off this list, click on the 3 dots to the right of the site name and click REMOVE or BLOCK. Changes take effect immediately.