True change system drive

mc_start.bat

@@ -1,6 +1,5 @@
 @echo off
 title Minecraft Launcher
-cd \
 
 :: main directory of the game
 set MC_DIR=%APPDATA%\.minecraft
@@ -32,6 +31,7 @@ set HEIGHT=640
 set RAM="-Xmx1G"
 
 :: running minecraft
+%SystemDrive%
 cd %MC_DIR%
 
 java %RAM% -Djava.library.path=%NATIVES_DIR% -cp %MC_DIR%\libraries\com\mojang\netty\1.6\netty-1.6.jar;%MC_DIR%\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar;%MC_DIR%\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar;%MC_DIR%\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar;%MC_DIR%\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;%MC_DIR%\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar;%MC_DIR%\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;%MC_DIR%\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;%MC_DIR%\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;%MC_DIR%\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;%MC_DIR%\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;%MC_DIR%\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar;%MC_DIR%\libraries\com\google\guava\guava\17.0\guava-17.0.jar;%MC_DIR%\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar;%MC_DIR%\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;%MC_DIR%\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;%MC_DIR%\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;%MC_DIR%\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;%MC_DIR%\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;%MC_DIR%\libraries\com\mojang\authlib\1.5.24\authlib-1.5.24.jar;%MC_DIR%\libraries\com\mojang\realms\1.10.8\realms-1.10.8.jar;%MC_DIR%\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;%MC_DIR%\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;%MC_DIR%\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;%MC_DIR%\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;%MC_DIR%\libraries\it\unimi\dsi\fastutil\7.0.12_mojang\fastutil-7.0.12_mojang.jar;%MC_DIR%\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;%MC_DIR%\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;%MC_DIR%\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar;%MC_DIR%\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar;%MC_DIR%\versions\%VERSION%\%VERSION%.jar net.minecraft.client.main.Main --username %PLAYER% --version %VERSION% --accessToken 0 --userProperties {} --gameDir %GAME_DIR% --assetsDir %ASSETS_DIR% --assetIndex %ASSETS_INDEX% --width %WIDTH% --height %HEIGHT%