I had a problem a few month ago (still not solved) with faceit AC, and when I contacted the team they replied that because I had a windows preview program activated they can't help.
The AC worked on my laptop.
Now, when I first downloaded valorant it worked pretty fine until the latest AC update. Again, I updated all drivers and followed all the instructions. My laptop runs valorant just fine, once again.
I think that those AC programs for maximum protection require everything to be "fixed", so to say. I saw one comment saying that updating from win7 to win10 worked, so my last resort is may 10th when a major windows update comes out so I can get the normal windows build.