Avast popup problem that starts unexpectedly

Hello,

My antivirus is TotalAV. I received my new PC a few days ago and the night before yesterday I went to Clubic to download utilities I use normally like Photoshop, PicoPDF, WinRAR, etc. so nothing illegal. While downloading, a popup window for Avast, as you find everywhere, opened; I clicked the arrow to close the page and that’s where it all started. Avast windows began to open (your PC is infected with 3 viruses, click here to clean). I close the windows but other pages open (your Avast subscription has ended since yesterday, please find a discount code, etc.). I have never subscribed to Avast, I never downloaded it. A friend of mine had the paid version; he ended up with ransomware and he lost the contents of his HDD. I would like to know how to make these pages stop opening. I have no intention of buying this thing that only protects the developers at Avast. I contacted Avast on Facebook; the guy couldn’t tell me how to fix it. I was advised to uninstall Avast and use Microsoft’s security, but I didn’t install Avast and I still reserve the right to choose which antivirus to use.

My PC runs Windows 11

thanks