Windows 10: What do i do?

So I went onto Google Chrome today and every time I've searched stuff up its been sending me to random search engines instead of "google.com/------", I tried to delete the search engines that got added and it worked but it still happened, I then realised that i had a new chrome extension called "CosmicPhotonor" that said it was added by administrator and its also in edge extensions. I searched up answers and it was all about the Registry Editor. I found the files causing this problem but it wont let me delete the files so I search that up and every single thing it says to do doesn't work. I ha

:)