As some might know, I had the issue where my minecraft would crash the second I tried logging onto CCMC or any 1.10 server. I tried updating my JAVA, deleting and re-installing Minecraft, restarting my laptop, and so on and so forth but nothing helped. And I noticed after listening to @jflory7 's ramble and other players that it's not a uncommon thing for the time being! So I decided if someone have issues with logging on, it wont hurt to try this! I realised that with the update, it also turned on some settings that I didnt have on previously. (No, it has nothing to do with optifine or bad laptops ) What worked for me: > Increase allocated RAM from 1GB to 2GB (only applicable to 64 bit users) < In the Edit Profile menu in the Launcher, check the JVM Arguments box, and change the -Xmx1G argument to -Xmx2G > Change Video Settings in-game (Options -> Video Settings) < - Disable VBOs.