No one likes pop-up notices and advertisements. In your case, it’s difficult to be specific about a solution because fixing this depends on exactly what ads and pop-ups you see, what they look like, and how they appear.
Because there are so many potential sources for pop-ups and advertisements, I’m going to review some of the most common and hope that one of them will apply in your situation.
Before we begin…
You need to back up your computer now. One of the first things that I’ll have you do is uninstall some software. If we uninstall something by mistake, the back up will help you get back to where we started.
Flood of pop-ups
When I read your question, the first thing that came to mind was malware.
Now, I know your machine is new, but it’s still possible to be infected. It doesn’t matter what anti-virus or anti-malware program you have. None are perfect and there’s always a chance that malware can sneak on your machine.
So start by making sure that your malware tools and their databases are up to date, and consider running a scan with the free tool from MalwareBytes. While it, too, may not find all malware, Malwarebytes can still detect potentially “unwanted programs” or “adware” that it can remove. This may make the situation better.
Adware, trialware, and crapware
My next thought is that you have trialware on your machine and you need to remove it. Trialware is any third-party trial or demo software. Many people have come to refer to the plethora of installed trialware, demos and other unwanted programs as “crapware”.
Computer manufacturers include trialware (and crapware) on their new machines to make money. The hope of manufacturers is that you’ll try and buy the full version of their software. They’ll often display pop-ups and other windows to remind you that their demo software is there.
Getting rid of it
There are a couple of ways to deal with this.
The first is to uninstall the software that you don’t use. As long as you’ve backed up your machine, you can feel safe uninstalling these programs.
Because you have a new machine and it may have a lot of trialware on it, another useful tool is the PC Decrapifier. This uninstalls many known trialware packages easily, safely, and quickly.
Popups while browsing
Now, I’m assuming that these pop-ups appear before you open an internet browser. If you’re seeing this as you navigate the internet, it could simply be from the site(s) you’re visiting.
Again, it all depends on the specifics of the situation. But give my recommendations a try and see if you can uninstall software that might be causing the problem.