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After getting Minecraft reinstalled on my new gaming computer with windows 10, I wasn't able to create or join any worlds in 1.7.10.

When I was on modded (i.e. AT Launcher, Technic, FTB/Twitch Launcher) then it would just take me back to the title screen.

On vanilla it would crash my game when I tried to create a world, giving me this crash report:

---- Minecraft Crash Report -------- Minecraft Crash Report ----// Shall we play a game?
Time: 9/01/18 4:57 PMDescription: Unexpected error
java.lang.IndexOutOfBoundsException at java.nio.Buffer.checkIndex(Buffer.java:540) at java.nio.DirectIntBufferU.get(DirectIntBufferU.java:253) at bma.a(SourceFile:271) at bma.a(SourceFile:220) at bao.a(SourceFile:1694) at bao.a(SourceFile:1652) at bjb.a(SourceFile:125) at hd.a(SourceFile:70) at hd.a(SourceFile:13) at ej.a(SourceFile:174) at bao.p(SourceFile:1585) at bao.ak(SourceFile:774) at bao.f(SourceFile:728) at net.minecraft.client.main.Main.main(SourceFile:148)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Stacktrace: at java.nio.Buffer.checkIndex(Buffer.java:540) at java.nio.DirectIntBufferU.get(DirectIntBufferU.java:253) at bma.a(SourceFile:271) at bma.a(SourceFile:220) at bao.a(SourceFile:1694) at bao.a(SourceFile:1652) at bjb.a(SourceFile:125) at hd.a(SourceFile:70) at hd.a(SourceFile:13) at ej.a(SourceFile:174)
-- Affected level --Details: Level name: MpServer All players: 0 total; [] Chunk stats: MultiplayerChunkCache: 0, 0 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 0 game time, 0 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false Forced entities: 0 total; [] Retry entities: 0 total; [] Server brand: ~~ERROR~~ NullPointerException: null Server type: Integrated singleplayer serverStacktrace: at bjf.a(SourceFile:289) at bao.b(SourceFile:1972) at bao.f(SourceFile:742) at net.minecraft.client.main.Main.main(SourceFile:148)
-- System Details --Details: Minecraft Version: 1.7.10 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 46343640 bytes (44 MB) / 201326592 bytes (192 MB) up to 4294967296 bytes (4096 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 Launched Version: 1.7.10 LWJGL: 2.9.1 OpenGL: GeForce GTX 1050/PCIe/SSE2 GL version 4.6.0 NVIDIA 387.92, NVIDIA Corporation GL Caps: Using GL 1.3 multitexturing.Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.Anisotropic filtering is supported and maximum anisotropy is 16.Shaders are available because OpenGL 2.1 is supported.
Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: [] Current Language: English (US) Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Anisotropic Filtering: Off (1)

I have tried reinstalling minecraft again & running the launcher as administrator, can anyone tell me what to do?

Delete the options.txt or change your render distance

This worked with vanilla, but it didn't help with modded 1.7.10.

if your modded instance has a seperate directory, delete options.txt there too or install optifine.

Quote from FirEmerald»

if your modded instance has a seperate directory, delete options.txt there too or install optifine.

Even after doing what you said above it still doesn't work

Nvm, I got it working, it was just on of the mods which didn't work.