Réinstallation Impossible

Bonjour,

Bon voilà, j'ai un GROS problème...
Impossible de réinstaller Minecraft. Le jeu buggait pour aucune raison, je le réinstalle et j’obtiensà chaque installation : unable to start the minecraft runtime environment this is most likely caused by a corruption.


Les logs :

Set run directory to C:\Users\Théo\Desktop\Steam\Minecraft
Native Launcher Version: 286
Operating System: Windows 7 Professional
Application Hash: 8f1d31dfea0301cfa2ca7aaedc34da8e9fa25b31
Application Data directory: C:\Users\Théo\AppData\Roaming
Executable Path: Minecraft.exe
App Directory dir: C:\Users\Théo\Desktop\Steam\Minecraft
Start dir: C:/Users/Théo/Desktop/Steam/Minecraft
Launcher dir: C:/Users/Théo/Desktop/Steam/Minecraft/game
TmpDir dir: C:/Users/Théo/Desktop/Steam/Minecraft/game
Java Launcher hash: f9d59d273807f7b98f8e32d327ac7964481246d4
Java Version: 1.8.0_25
x64: 1
LauncherConfiguration from: https://launchermeta.mojang.com/mc/launcher.json
Downloaded config
Native launcher is current
Native launcher is current
Java launcher is current: f9d59d273807f7b98f8e32d327ac7964481246d4(f9d59d273807f7b98f8e32d327ac7964481246d4)
Check to see if we can run the launcher
Native launcher is current
runJavaLauncher
Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe -cp C:/Users/Théo/Desktop/Steam/Minecraft/game/launcher.jar net.minecraft.launcher.Main --nativeLauncherVersion 286
Error message: Le fichier spécifié est introuvable.


Si quelqun pourrait m'aidé ça serait sympas...