Minecraft Forums

Hello, the last time I played Minecraft was 1.6.something and I've been wanting to get back into it. I cleared my .Minecraft folder and updated my Java but when I tried to install and play I got this at the end. Any idea what the problem is? Thanks.

[17:55:13 INFO]: Job 'Resources' finished successfully (took 0:08:12.034)
[17:55:13 INFO]: Launching game
[17:55:13 INFO]: Looking for old natives & assets to clean up...
[17:55:13 INFO]: Unpacking natives to C:\Documents and Settings\Blake\Application Data\.minecraft\versions\1.7.5\1.7.5-natives-7998960513417
[17:55:13 ERROR]: Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method) ~[?:1.7.0_51]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.7.0_51]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.7.0_51]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:477) ~[launcher.jar:?]
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:215) [launcher.jar:?]
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:627) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:120) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_51]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]

Try to delete this Folder "C:\Documents and Settings\Blake\Application Data\.minecraft\versions\1.7.5\"
and let the launcher re download the files.
(Maybe reboot before this. That widows doesn't block the files inside for the delete.)