Trados Studio 2021 doesn't open

I've installed the latest version with no error messages. When I double-click the program's icon, nothing happens. The mouse cursor shows activity (circle rotating) but then stops and nothing opens. I've tried opening it as an administrator and running as Windows 8 and 7 for compatibility issues, nothing happens. I've followed the instructions on this article: "">gateway.sdl.com/.../communityknowledge and repaired the installation, nothing happens. Tried to follow step 2, but I don't have the "C:\Users\%USERNAME%\AppData\Roaming\SDL" folder. I'm missing the SDL folder, just to be clear. Step 3 doesn't work either because I don't have the folders it references. I have configured it to show hidden objects, I can see other hidden folders, but not the SDL one. Everything else works fine on my machine.