Minecraft Forums

Not exactly sure where to post this, so I thought I'd start here. If I need to move it, please let me know.

My son has been playing Minecraft a lot. One day when he went to start the game, he received the following error message (just recreated today):

Bootstrap (v5)
Current time is Aug 30, 2014 4:53:17 PM
System.getProperty('os.name') == 'Windows 8.1'
System.getProperty('os.version') == '6.3'
System.getProperty('os.arch') == 'x86'
System.getProperty('java.version') == '1.7.0_67'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '32'

Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Didn't find an update in time.
Reversing LZMA on C:\Users\Morgan\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Morgan\AppData\Roaming\.minecraft\launcher.pack
Unpacking C:\Users\Morgan\AppData\Roaming\.minecraft\launcher.pack to C:\Users\Morgan\AppData\Roaming\.minecraft\launcher.jar
Got reply in: 9182ms
No update found.
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to un-pack200: java.io.FileNotFoundException: C:\Users\Morgan\AppData\Roaming\.minecraft\launcher.jar (Access is denied)
at net.minecraft.bootstrap.Bootstrap.unpack(Bootstrap.java:159)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:123)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)


Please fix the error and restart.

I'm not really sure where to go as far as trying to fix this for him. Any help would be appreciated.

Thanks!