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A short snippet is shown where the error is happening.

[16:22:59 INFO]: Minecraft Launcher 1.6.61 (through bootstrap 5) started on windows...
[16:23:35 INFO]: Launching game
[16:23:35 INFO]: Unpacking natives to C:\Users\USER\AppData\Roaming\.minecraft\versions\1.7.10\1.7.10-natives-13864854996786
[16:23:35 ERROR]: Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method) ~[?:1.8.0_74]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.8.0_74]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.8.0_74]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.8.0_74]
at net.minecraft.launcher.game.MinecraftGameRunner.unpackNatives(MinecraftGameRunner.java:378) ~[launcher.jar:1.6.61]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:111) [launcher.jar:1.6.61]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:186) [launcher.jar:1.6.61]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:1.6.61]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:1.6.61]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:1.6.61]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_74]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_74]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_74]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_74]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_74]

Finally got a successful launch.

How do you fix it?!? I really want to play minecraft :'(