Minecraft Forums

So guys everytime i open minecraft launcher,everytime the native launcher is downloading. But what is native launcher? It just downloads,after i see nativelog text file on my desktop. It says this:
Set run directory to C:\Program Files (x86)\Minecraft
Native Launcher Version: 1148
Operating System: Windows 8.1 Pro
Application Hash: 04f46f294e363ba0618ce6392e778e8c7a63a175
Application Data directory: C:\Users\User\AppData\Roaming/.minecraft
Executable Path: MinecraftLauncher.exe
App Directory dir: C:\Program Files (x86)\Minecraft
Start dir: C:/Users/User/AppData/Roaming/.minecraft
Launcher dir: C:/Program Files (x86)/Minecraft/game
TmpDir dir: C:/Program Files (x86)/Minecraft/tmp
(Optional) Java Launcher hash: d0603470df7a677540642656d065788d8d64bed2
Java Version: 1.8.0_25
x64: 1
LauncherConfiguration from: http://launchermeta.mojang.com/mc/launcher.json
Downloaded config
Native update needed
Native launcher outdated!
Hash should be 62768d887aa2401a319a62eb8b7d9349ab40a421
Thanks for the help!

Try a reinstall?

http://hopper.minecraft.net/help/guides/reinstalling-minecraft/