i bought the 64gb model and did an ssd swap so i never had antiglare to begin with, and it's more a precaution than anything, shit happens and all that.
https://github.com/FailedShack/USBHelperInstaller you might start here for a program to download them. it'll ask for "that title keys site" which will be literally the first result on google for that search.
seconding this, rutracker and rutor are my go to's