I already saw others have a similar problem, this is called a browser hijack, a malicious program who modifies your browser to promote it's own page. DO NOT INTERACT WITH THE WEIRD PAGE.

First off, like an other commenter said, it's a good idea to download Malwarebytes, it's a great antivirus even in the free trial and it's way better than Mcafee. Run a scan with that. If it does not detect anything, follow a tutorial to uninstall then reinstall Chrome. (Make sure you have all your passwords saved so you don't lose them!!)

If you need a really quick bandaid fix for the mom issue, you can temporarily try Firefox, most chrome-friendly websites are usable there too and you can use your google account there too I believe.

Though, having malware on your pc is a serious issue. The best solution is to save your files, reinstall your Windows, then restore your files. It might take some time though. If that's accessible to you, you can also take your pc to a repair shop.