Mac hangs at white screen with spinning with loading wheel while shutting down.

I've had a problem with my computer recently that really bugs me, because I been needing to install os x updates, but when i try to shut my computer down, it hangs at a white screen with the grey loading wheel forever until I forcibly shut it down. This has been bugging me a lot, and when I try other peoples' solutions, (e.g. resetting NVRAM, uninstalling apps), I can't figure out what apps to uninstall, and resetting the NVRAM is no luck. I have a console log of the shutdown here:
3/14/2014 8:12:04.325 AM WindowServer[133]: CGXGetConnectionProperty: Invalid connection 37731
3/14/2014 8:12:04.327 AM WindowServer[133]: CGXGetConnectionProperty: Invalid connection 37731
3/14/2014 8:12:04.327 AM WindowServer[133]: CGXGetConnectionProperty: Invalid connection 37731
3/14/2014 8:12:04.327 AM WindowServer[133]: CGXGetConnectionProperty: Invalid connection 37731
3/14/2014 8:12:04.328 AM WindowServer[133]: CGXGetConnectionProperty: Invalid connection 37731
3/14/2014 8:12:04.347 AM com.apple.launchd.peruser.501[210]: (com.apple.EscrowSecurityAlert[483]) Exited: Killed: 9
3/14/2014 8:12:04.354 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x15 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.354 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x14 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.354 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x13 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.354 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x11 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.354 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x10 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.355 AM WindowServer[133]: _CGXGetWindowOrderingGroup: Operation on a window 0x71 requiring rights 0x5 by caller Dashboard
3/14/2014 8:12:04.355 AM com.apple.launchd[1]: (com.apple.ShareKitHelper[299]) Exited: Killed: 9
3/14/2014 8:12:04.355 AM WindowServer[133]: CGXOrderWindowList: Operation on a window 0x15 requiring rights kCGSWindowRightPresenter by caller Dashboard
3/14/2014 8:12:04.355 AM DashboardClient[496]: CGSOrderWindowList
3/14/2014 8:12:04.364 AM com.apple.launchd[1]: (com.apple.internetaccounts[279]) Exited: Killed: 9
3/14/2014 8:12:04.364 AM com.apple.launchd.peruser.501[210]: (com.intego.commonservices.integomenu[263]) Exited: Killed: 9
3/14/2014 8:12:04.387 AM com.apple.launchd.peruser.501[210]: (com.apple.iTunesHelper.17984[270]) Exited with code: 1
3/14/2014 8:12:04.387 AM com.apple.launchd.peruser.501[210]: (com.apple.ImageCaptureExtension2.10416[354]) Exited: Killed: 9
3/14/2014 8:12:04.387 AM com.apple.launchd.peruser.501[210]: (com.apple.gamed[275]) Exited: Killed: 9
3/14/2014 8:12:04.390 AM com.apple.launchd.peruser.501[210]: ([0x0-0x37037].com.apple.AppleSpell[391]) Exited: Killed: 9
3/14/2014 8:12:04.428 AM _cvmsroot[534]: audit warning: allsoft
3/14/2014 8:12:04.428 AM _cvmsroot[535]: audit warning: soft /var/audit
3/14/2014 8:12:04.453 AM _cvmsroot[537]: audit warning: closefile /var/audit/20140314120742.20140314121204
3/14/2014 8:12:04.481 AM sessionlogoutd[538]: sessionlogoutd Launched
3/14/2014 8:12:04.497 AM loginwindow[92]: ERROR | -[Application setAppContext:] | Unable to get PID for context [0,53261]
3/14/2014 8:12:04.505 AM sessionlogoutd[538]: DEAD_PROCESS: 92 console
3/14/2014 8:12:04.541 AM gamed[530]: CKSoftwareMap: Registering with Daemon
3/14/2014 8:12:04.562 AM loginwindow[92]: ERROR | processNotificationManagerLSNotificationCallBack | LWCASProcessNotificationManager UNEXPECTED NOTIFICATION of type: kLSNotifyApplicationBirth
3/14/2014 8:12:04.593 AM airportd[113]: _doAutoJoin: Already associated to “ThompsonFamily1”. Bailing on auto-join.
3/14/2014 8:12:04.599 AM com.apple.kextd[12]: Can't create kext cache under / - owner not root.
3/14/2014 8:12:04.602 AM com.apple.kextd[12]: Rescanning kernel extensions.
3/14/2014 8:12:04.000 AM kernel[0]: Kext loading now disabled.
3/14/2014 8:12:04.000 AM kernel[0]: Kext unloading now disabled.
3/14/2014 8:12:04.000 AM kernel[0]: Kext autounloading now disabled.
3/14/2014 8:12:04.000 AM kernel[0]: Kernel requests now disabled.
3/14/2014 8:12:04.602 AM com.apple.kextd[12]: Can't create kext cache under / - owner not root.
3/14/2014 8:12:04.602 AM shutdown[539]: halt by _cvmsroot:
3/14/2014 8:12:04.602 AM shutdown[539]: SHUTDOWN_TIME: 1394799124 602127
3/14/2014 8:12:04.632 AM Dock[221]: XPC error messaging com.apple.IconServicesAgent: Connection interrupted
3/14/2014 8:12:04.632 AM Dock[221]: XPC error messaging com.apple.IconServicesAgent: Connection invalid
Any help would be appreciated,
Thanks.

Select the icon of the startup volume ("Macintosh HD," unless you gave it a different name) in a Finder window and open the Info window. In the Sharing & Permissions section, what is shown under Name and Privilege?

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    Step 9
    Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
    Step 10
    Repeat Step 9, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
    Step 11
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