Minecraft 1.9.4 and others before that had been working fine until I tried use 1.10 or any of those updates. After using 1.10 it crashes and no versions will work.
Minecraft works fine until trying to play multiplayer server or singleplayer worlds, in which case it freezes when spawning and crashes, giving a report on the launcher.

Jul 15, 2016 2:03:12 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name optifine.OptiFineTweaker
Jul 15, 2016 2:03:12 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name optifine.OptiFineTweaker
Jul 15, 2016 2:03:12 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class optifine.OptiFineTweaker
OptiFineTweaker: acceptOptions
OptiFineTweaker: injectIntoClassLoader
OptiFine ClassTransformer
OptiFine URL: file:/C:/Users/Wolfy/AppData/Roaming/.minecraft/libraries/optifine/OptiFine/1.9.4_HD_U_B4/OptiFine-1.9.4_HD_U_B4.jar
OptiFine ZIP file: C:\Users\Wolfy\AppData\Roaming\.minecraft\libraries\optifine\OptiFine\1.9.4_HD_U_B4\OptiFine-1.9.4_HD_U_B4.jar
OptiFineTweaker: getLaunchArguments
OptiFineTweaker: getLaunchTarget
Jul 15, 2016 2:03:13 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Launching wrapped minecraft

Completely ignored arguments: [--nativeLauncherVersion, 307]
[14:03:22] [Client thread/INFO]: Setting user: Faded_Fridgey
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.MinecraftForge
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.ForgeHooks
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.MinecraftForgeClient
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.ForgeHooksClient
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.FMLCommonHandler
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.client.FMLClientHandler
[OptiFine] (Reflector) Method not present: asv.getSkyRenderer
[OptiFine] (Reflector) Method not present: asv.getCloudRenderer
[OptiFine] (Reflector) Method not present: asv.getWeatherRenderer
[OptiFine] (Reflector) Method not present: aht.countEntities
[OptiFine] (Reflector) Method not present: aht.getPerWorldStorage
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.IRenderHandler
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.DimensionManager
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.world.WorldEvent$Load
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderItemInFrameEvent
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.GuiScreenEvent$DrawScreenEvent$Pre
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.GuiScreenEvent$DrawScreenEvent$Post
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$FogColors
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$RenderFogEvent
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$CameraSetup
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderLivingEvent$Pre
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderLivingEvent$Post
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderLivingEvent$Specials$Pre
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderLivingEvent$Specials$Post
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.eventhandler.EventBus
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.eventhandler.Event$Result
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.ForgeEventFactory
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.RenderBlockOverlayEvent$OverlayType
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.world.ChunkWatchEvent$UnWatch
[OptiFine] (Reflector) Method not present: ajt.getBedDirection
[OptiFine] (Reflector) Method not present: ajt.isBed
[OptiFine] (Reflector) Method not present: ajt.isBedFoot
[OptiFine] (Reflector) Method not present: ajt.hasTileEntity
[OptiFine] (Reflector) Method not present: ajt.canCreatureSpawn
[OptiFine] (Reflector) Method not present: ajt.addHitEffects
[OptiFine] (Reflector) Method not present: ajt.addDestroyEffects
[OptiFine] (Reflector) Method not present: ajt.isAir
[OptiFine] (Reflector) Method not present: ajt.canRenderInLayer
[OptiFine] (Reflector) Method not present: ajt.getExtendedState
[OptiFine] (Reflector) Field not present: rr.captureDrops
[OptiFine] (Reflector) Field not present: rr.capturedDrops
[OptiFine] (Reflector) Method not present: rr.shouldRenderInPass
[OptiFine] (Reflector) Method not present: rr.canRiderInteract
[OptiFine] (Reflector) Method not present: rr.shouldRiderSit
[OptiFine] (Reflector) Method not present: apv.shouldRenderInPass
[OptiFine] (Reflector) Method not present: apv.getRenderBoundingBox
[OptiFine] (Reflector) Method not present: apv.canRenderBreaking
[OptiFine] (Reflector) Method not present: ado.onEntitySwing
[OptiFine] (Reflector) Method not present: ado.shouldCauseReequipAnimation
[OptiFine] (Reflector) Method not present: ado.showDurabilityBar
[OptiFine] (Reflector) Method not present: ado.getDurabilityForDisplay
[OptiFine] (Reflector) Method not present: rl.isCurativeItem
[OptiFine] (Reflector) Method not present: aef.getRecordResource
[OptiFine] (Reflector) Method not present: bvp$b.preDraw
[OptiFine] (Reflector) Method not present: bvp$b.postDraw
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.asm.transformers.BlamingTransformer
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.relauncher.CoreModManager
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.client.SplashProgress
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.model.pipeline.LightUtil
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.property.IExtendedBlockState
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.ItemModelMesherForge
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.model.ModelLoader
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.model.Attributes
[OptiFine] (Reflector) Class not present: mods.betterfoliage.client.BetterFoliageClient
[OptiFine] (Reflector) Method not present: aig.getWaterColorMultiplier
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.client.registry.RenderingRegistry
[OptiFine] (Reflector) Method not present: bpj.preDrawBatch
[OptiFine] (Reflector) Method not present: bpj.drawBatch
[OptiFine] (Reflector) Method not present: bon.handleItemState
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.ForgeModContainer
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.settings.KeyConflictContext
[OptiFine] (Reflector) Method not present: bca.setKeyConflictContext
[OptiFine] (Reflector) Method not present: bca.setKeyModifierAndCode
[OptiFine] (Reflector) Method not present: bca.getKeyModifier
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.settings.KeyModifier
[14:03:45] [Client thread/INFO]: LWJGL Version: 2.9.4
[OptiFine]
[OptiFine] OptiFine_1.9.4_HD_U_B4
[OptiFine] Build: 20160519-102510
[OptiFine] OS: Windows 8.1 (amd64) version 6.3
[OptiFine] Java: 1.8.0_25, Oracle Corporation
[OptiFine] VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
[OptiFine] LWJGL: 2.9.4
[OptiFine] OpenGL: Intel(R) HD Graphics 4400, version 4.2.0 - Build 10.18.10.3496, Intel
[OptiFine] OpenGL Version: 4.0
[OptiFine] OpenGL Fancy fog: Not available (GL_NV_fog_distance)
[OptiFine] Maximum texture size: 8192x8192
[OptiFine] Checking for new version
[Shaders] ShadersMod version: 2.4.12
[Shaders] OpenGL Version: 4.2.0 - Build 10.18.10.3496
[Shaders] Vendor: Intel
[Shaders] Renderer: Intel(R) HD Graphics 4400
[Shaders] Capabilities: 2.0 2.1 3.0 3.2 4.0
[Shaders] GL_MAX_DRAW_BUFFERS: 8
[Shaders] GL_MAX_COLOR_ATTACHMENTS_EXT: 8
[Shaders] GL_MAX_TEXTURE_IMAGE_UNITS: 32
[Shaders] Load ShadersMod configuration.
[Shaders] Loaded shaderpack: Custom Sky.zip
[OptiFine] Version found: B6
[14:04:28] [Client thread/INFO]: Reloading ResourceManager: Default
[OptiFine] *** Reloading textures ***
[OptiFine] Resource packs: Default
[14:04:54] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:04:55] [Thread-6/INFO]: Initializing LWJGL OpenAL
[14:04:55] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[OptiFine] Mipmap levels: 4
[OptiFine] Multitexture: false
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/0_glass_white/glass_pane_white.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/0_glass_white/glass_white.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/10_glass_purple/glass_pane_purple.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/10_glass_purple/glass_purple.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/11_glass_blue/glass_blue.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/11_glass_blue/glass_pane_blue.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/12_glass_brown/glass_brown.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/12_glass_brown/glass_pane_brown.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/13_glass_green/glass_green.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/13_glass_green/glass_pane_green.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/14_glass_red/glass_pane_red.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/14_glass_red/glass_red.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/15_glass_black/glass_black.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/15_glass_black/glass_pane_black.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/1_glass_orange/glass_orange.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/1_glass_orange/glass_pane_orange.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/2_glass_magenta/glass_magenta.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/2_glass_magenta/glass_pane_magenta.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/3_glass_light_blue/glass_light_blue.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/3_glass_light_blue/glass_pane_light_blue.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/4_glass_yellow/glass_pane_yellow.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/4_glass_yellow/glass_yellow.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/5_glass_lime/glass_lime.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/5_glass_lime/glass_pane_lime.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/6_glass_pink/glass_pane_pink.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/6_glass_pink/glass_pink.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/7_glass_gray/glass_gray.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/7_glass_gray/glass_pane_gray.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/8_glass_silver/glass_pane_silver.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/8_glass_silver/glass_silver.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/9_glass_cyan/glass_cyan.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/9_glass_cyan/glass_pane_cyan.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/bookshelf.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/glass.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/glasspane.properties
[OptiFine] ConnectedTextures: mcpatcher/ctm/default/sandstone.properties
[OptiFine] Multipass connected textures: false
[OptiFine] BetterGrass: Parsing default configuration optifine/bettergrass.properties
[14:05:06] [Client thread/INFO]: Created: 1024x512 textures-atlas
[Shaders] allocateTextureMap 4 1024 512
[OptiFine] *** Reloading custom textures ***
[OptiFine] Natural Textures: Parsing default configuration "optifine/natural.properties"
[OptiFine] Natural Textures: Valid only for textures from default resource pack
[OptiFine] NaturalTextures: grass_side = F
[OptiFine] NaturalTextures: grass_side_overlay = F
[OptiFine] NaturalTextures: grass_side_snowed = F
[OptiFine] NaturalTextures: mycelium_side = F
[OptiFine] NaturalTextures: mycelium_top = 4F
[OptiFine] NaturalTextures: grass_path_top = 4
[OptiFine] NaturalTextures: snow = 4F
[OptiFine] NaturalTextures: coarse_dirt = 4F
[OptiFine] NaturalTextures: dirt_podzol_top = 4F
[OptiFine] NaturalTextures: farmland_wet = 2F
[OptiFine] NaturalTextures: farmland_dry = 2F
[OptiFine] NaturalTextures: stone_granite = 2F
[OptiFine] NaturalTextures: stone_diorite = 2F
[OptiFine] NaturalTextures: stone_andesite = 2F
[OptiFine] NaturalTextures: sandstone_top = 4
[OptiFine] NaturalTextures: sandstone_bottom = 4F
[OptiFine] NaturalTextures: stone_slab_top = F
[OptiFine] NaturalTextures: end_stone = 4
[OptiFine] NaturalTextures: gravel = 2
[OptiFine] NaturalTextures: clay = 4F
[OptiFine] NaturalTextures: log_oak = 2F
[OptiFine] NaturalTextures: log_spruce = 2F
[OptiFine] NaturalTextures: log_birch = F
[OptiFine] NaturalTextures: log_jungle = 2F
[OptiFine] NaturalTextures: log_acacia = 2F
[OptiFine] NaturalTextures: log_big_oak = 2F
[OptiFine] NaturalTextures: log_oak_top = 4F
[OptiFine] NaturalTextures: log_spruce_top = 4F
[OptiFine] NaturalTextures: log_birch_top = 4F
[OptiFine] NaturalTextures: log_jungle_top = 4F
[OptiFine] NaturalTextures: log_acacia_top = 4F
[OptiFine] NaturalTextures: log_big_oak_top = 4F
[OptiFine] NaturalTextures: leaves_oak = 2F
[OptiFine] NaturalTextures: leaves_spruce = 2F
[OptiFine] NaturalTextures: leaves_birch = 2F
[OptiFine] NaturalTextures: leaves_jungle = 2
[OptiFine] NaturalTextures: leaves_big_oak = 2F
[OptiFine] NaturalTextures: leaves_acacia = 2F
[OptiFine] NaturalTextures: gold_ore = 2F
[OptiFine] NaturalTextures: iron_ore = 2F
[OptiFine] NaturalTextures: coal_ore = 2F
[OptiFine] NaturalTextures: diamond_ore = 2F
[OptiFine] NaturalTextures: redstone_ore = 2F
[OptiFine] NaturalTextures: lapis_ore = 2F
[OptiFine] NaturalTextures: netherrack = 4F
[OptiFine] NaturalTextures: quartz_ore = 2
[OptiFine] NaturalTextures: soul_sand = 4F
[OptiFine] NaturalTextures: glowstone = 4
[OptiFine] NaturalTextures: redstone_lamp_on = 4F
[OptiFine] NaturalTextures: redstone_lamp_off = 4F
[OptiFine] NaturalTextures: prismarine_rough = 4F
[OptiFine] NaturalTextures: obsidian = 4F
[OptiFine] NaturalTextures: cactus_side = 2F
[14:06:21] [Client thread/INFO]: Connecting to play.theemeraldisle.net., 25565
[14:07:00] [Client thread/INFO]: Warning: Clientside chunk ticking took 334 ms
[14:07:01] [Client thread/INFO]: [CHAT] A new §eOptiFine§f version is available: §eHD Ultra B6§f
[Shaders] usedColorBuffers: 4
[Shaders] usedDepthBuffers: 1
[Shaders] usedShadowColorBuffers: 0
[Shaders] usedShadowDepthBuffers: 0
[Shaders] usedColorAttachs: 4
[Shaders] usedDrawBuffers: 1
[Shaders] Framebuffer created.
[Shaders] Reset world renderers
[14:07:11] Texture Downloader #1/ERROR: Couldn't download http texture: java.lang.RuntimeException: Timeout 5000
[14:07:21] [Thread-6/INFO]: OpenAL initialized.
[14:07:21] [Sound Library Loader/INFO]: Sound engine started
[14:07:22] [Client thread/INFO]: Connecting to play.theemeraldisle.net., 25565
[14:07:46] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
at h.a(SourceFile:46) [h.class:?]
at bcd.av(SourceFile:961) [bcd.class:?]
at bcd.a(SourceFile:399) [bcd.class:?]
at net.minecraft.client.main.Main.main(SourceFile:124) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131) [launchwrapper-1.7.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:27) [launchwrapper-1.7.jar:?]
Caused by: java.lang.NullPointerException
at bbn.d(SourceFile:231) ~[bbn.class:?]
at bkq.a(SourceFile:1577) ~[bkq.class:?]
at hv.a(SourceFile:117) ~[hv.class:?]
at hv.a(SourceFile:13) ~[hv.class:?]
at fj$1.run(SourceFile:13) ~[fj$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
at h.a(SourceFile:45) ~[h.class:?]
... 9 more
[Shaders] Reset model renderers

I tried with and without optifine, I'm using no mods and no resource packs either.