Yesterday I played minecraft fine on the new launcher and everything. Then overnight my computer downloaded the 1.7.0_51 java update and ever since then Minecraft has given' me this error message. I have uninstalled java and re-installed it, both 32-bit and 64-bit separately and together. I've also uninstalled minecraft and reinstalled it, I've tried deleting the .minecraft folder, restarting my computer several times, etc. I even cleaned my computer for malware. Nothing. I simply have no idea what is wrong with my game. My OS is win 7 and I am running 64-bit.
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to start: java.lang.reflect.InvocationTargetException
Please fix the error and restart
Edit: apparently the issue was my custom windows style. It must have been blocking something java related.