I tried to run 1.6.4 with MultiMC and the official launcher, in both cases the game wouldn't launch, but if I tried to launch it multmc / the official launcher would complain that it was already running. Minecraft 1.6.4 didn't show up in Task Manager, either. Is it simply not possible to run 1.6.4 on Windows anymore?

  • I suggest that, either you provide any related information such as crash logs. And it should be, I wouldn't get why Java would refuse to run 1.6.4 specifically. And Minecraft shows up as Java (TM) Binary.
    – Phoenix
    Feb 6 '21 at 18:22
  • I went through releases one-by-one and 1.12.2 is the newest release that I can't run, here's a screenshot of the official launcher logs media.discordapp.net/attachments/718514902201008231/… Feb 6 '21 at 18:32
  • Java version? You might have to downgrade depending on your Java version.
    – Phoenix
    Feb 6 '21 at 18:34
  • MultiMC says my java version is 1.8.0_281 64-bit, I'm not sure if that is what the official launcher uses though Feb 6 '21 at 18:36
  • The official launcher uses a seperate java version for various reasons. So you may want to try a different launcher that will use your installed Java version, such as TLauncher.
    – Phoenix
    Feb 6 '21 at 18:49

Fixed it! I'm not sure why this fixed it but I restarted my PC, deleted .minecraft, and now 1.6.4 starts up just fine.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.