yes half life is installed and I did go into the training roomIs half life installed?
And as an incredibly old step that I don't remember what it did or if it still does it, did you at least run through the training room of HL if not the entire game?
EDIT: Also, you used both the full installer and the patch, not just the patch?
yes there is a file called mscJust to make sure you haven't somehow done an oopser with the installer, do you have a folder called "msc" inside your Half-Life folder?
This path: \Steam\SteamApps\common\Half-Life\msc
2080RTX - v436.15 as of yesterday. I've tested fullscreen mode before, on more dated drivers, and never had the issue - even if I usually use windowed mode.-outdated graphics drivers;