When opening Minecraft, the launcher proceeds to reverse LZMA and then goes to unpack.

That's the problem, it doesn't unpack. The catch is that I'm working with the computer technician here in the library to get this to work on the network of computers. Minecraft has worked on the computers before on the same network, but there was a crash when the computer tech set up a backup server and everything had to be restored. Now, Minecraft will not unpack.

The problem, I think, is that it is unpacking to a shared network folder and not a local folder like the C:\ drive, yet I do not know how or if it's even possible to change the path of the unpack.

This is what the bizns looks like:

Bootstrap (v5)
Current time is Sep 26, 2014 1:49:32 PM
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
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
Got reply in: 538ms
No update found.
Reversing LZMA on \\WIN-BDQALMTMB7H\Network\Users\Library\AppData\Roaming\.minecraft\launcher.pack.lzma to \\WIN-BDQALMTMB7H\Network\Users\Library\AppData\Roaming\.minecraft\launcher.pack
Unpacking \\WIN-BDQALMTMB7H\Network\Users\Library\AppData\Roaming\.minecraft\launcher.pack to \\WIN-BDQALMTMB7H\Network\Users\Library\AppData\Roaming\.minecraft\launcher.jar

It does not get past that no matter how long I wait.

Things I've tried:

-Went into AppData\Roaming\.minecraft and deleted the folder and re-installed it.

-Checked to see if the appropriate files have the permissions required to write, read, change files on the computer and such. (They do)

Funny thing is, I logged into the administrator account for a computer and ran Minecraft and it worked just fine only because it was unpacking the necessary files to the C:\ drive, not the network folder.

The computer tech has done all he can do and knows for a fact that he has allowed Java on the network to do things.

There are many kids here in the library that yearn for their Minecraft back, along with myself on occasion. I hope this guilt instills within you all the urgency of my request: is there a way to change the path that the launcher unpacks to?