Reinstalling drivers without a screen?

Hello there, so here's the thing. I'm having connectivity issues with my screens and my graphics card. My PC powers on fine, but the screen doesn't detect it. A few days ago, I was already experiencing issues: the screen wouldn't detect the computer for a few seconds, and then everything would be fine, and that happened every day. I thought it was a cable problem, but nothing worked. Since today, it doesn't work at all, even on another screen. I'm sure the problem lies more with the drivers. However, it's quite problematic; how can I access the graphics card driver to reinstall it without seeing what I'm doing? So my question is: is there an exact key combination to uninstall the graphics driver via Device Manager?
You should know that this happened after uninstalling an unknown device. You should also know that I'm connected with an HDMI adapter connected to a VGA cable. I tried HDMI directly, but nothing worked. I also have 3 other DP ports, but no screen to test.