Sophie Condon

this happened to me, too. I tried removing Minecraft from my computer and downloading it again, and using an older launcher, but neither helped. on windows 10, Minecraft version 1.12.
this is the crash report the older launcher gave me:

Minecraft Crash Report ----
// Ouch. That hurt 😞

Time: 8/1/17 2:16 PM
Description: Initializing game

org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at bhz.at(SourceFile:635)
at bhz.aq(SourceFile:458)
at bhz.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Thread: Client thread
Stacktrace:
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at bhz.at(SourceFile:635)
at bhz.aq(SourceFile:458)

– Initialization –
Details:
Stacktrace:
at bhz.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)

– System Details –
Details:
Minecraft Version: 1.12
Operating System: Windows 8.1 (x86) version 6.3
Java Version: 1.8.0_31, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 44380768 bytes (42 MB) / 151269376 bytes (144 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.12
LWJGL: 2.9.4
OpenGL: ~_ERROR~ RuntimeException: No OpenGL context found in the current thread.
GL Caps:
Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: ~_ERROR~ NullPointerException: null
Profiler Position: N/A (disabled)
CPU: <unknown>