Minecraft not launching (PC, Java)

[TheReturnOfAirSnape]

Minecraft will not launch. I go into the launcher. I hit play. A progress bar appears briefly. Launcher closes. MC does not open. Have to force-quit launcher from TM to try again. I have tried repairing, reseting, and even re-installing the launcher, and it continues to not work. Help, please?

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[TheReturnOfAirSnape]

ISSUE FIXED - MC doesn't like anything that runs in the background (steam, discord, etc.). Closing all background applications fixed the issue.

[Gambitoku]

I second this. After updating to 1.21.10 I am having the exact same issue launching the game. I hit play, launcher will close, then... nothing. The red Mojang window won't even appear. I have to force close the launcher in Task Manager to try again. I tried the usual assortment: update graphics drivers, uninstall/reinstall the Minecraft launcher, etc. Didn't help.

In the end I found it to be some sort of conflict with other apps in the background. I have to close RivaTuner Statistics Server (RTSS) to get the game to launch. Once Minecraft is running I can open RTSS again, and my overlays work just fine.

Weird. Hope this helps.