So recently my minecraft simply decided to not start at all. I've been playing like 3 weeks ago, all fine, now when i try to start the launcher it shows up in task manager for like half a second and dissapears again, after that nothing else happens.

Java and every other relevant drivers are on newest versions. Running on a Windows 10 desktop pc with 16GB RAM. 

 Would be nice if there are any suggestions for me as for I have tried reinstalling/repairing for the 50th time by now I guess.