Launching game Looking for old natives to clean up... Deleting C:\Users\richard\AppData\Roaming\.minecraft\versions\1.7.10\1.7.10-natives-336251473621 Fatal error launching game. Report this to http://mojang.atlassian.net please!

Dupe of MCL-1905

how do i open mc now?

even i reinstall minecraft uninstall all anti-virus programs the launcher says:
Launching game
Looking for old natives to clean up...
Deleting C:\Users\richard\AppData\Roaming\.minecraft\versions\1.8\1.8-natives-30700711879712
Unpacking natives to C:\Users\richard\AppData\Roaming\.minecraft\versions\14w34d\14w34d-natives-4488465846139
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:311)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:367)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:693)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:124)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:15)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:94)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

OK. Dupe of MCL-130, actually.