Zune 80gb not connecting to my computer

[some_kid6]

VERSION OF ZUNE
======================
Zune 80

VERSION OF ZUNE SOFTWARE/FIRMWARE
=====================================
3.1.620.0

OPERATING SYSTEM
======================
Windows 7 Home Premium

PROBLEM DESCRIPTION
=======================
My Zune was fine on the 10th, but then the next day my computer refused to connect to it. It knows it is a Zune device, but says it can't install the drivers. I have the most up to date drivers according to Device Manager though. The Zune software will not find my Zune either.

THINGS ATTEMPTED SO FAR
===========================
Restarted Zune
Rebooted computer
Reinstalled software, twice normally and once after using unZoone
Reset Zune (Which I now have a reset Zune that I can't restore since it can't connect.)

HAVE YOU SEARCHED ONLINE/ZUNEBOARDS TO FIND A SOLUTION?
================================================== ========
Yes, Zune Boards, Zune.net, and Google. Nothing has helped so far.

HAVE YOU RECEIVED ANY ERROR MESSAGES?
========================================
From Device Manager: This device cannot start. (Code 10)

ATTACHMENTS
====================


Ideas?

[Creative Zune]

uninstall drivers
reboot
connect the zune

[some_kid6]

Tried with no success.

[Creative Zune]

Originally Posted by some_kid6

Tried with no success.

did you change anything or install any programs before the problem occurred?

[some_kid6]

I haven't installed anything new for a while, but I have been having other issues that might be related. My USB Hub started acting up the day before and caused my computer to crash. I unplugged it and everything was fine. I also unplugged my Zune during a sync the day before my computer decided to refuse to recognize it, but it synced fine a few hours later. Actually, now that I think about it, I did install QuickFreedom to jailbreak a friends iPod Touch. I just uninstalled it. I'll reboot and see what happens.

Edit: Uninstalling QuickFreedom and rebooting was unsuccessful at treating the problem.

Edit 2: I uninstalled LIBUSB because it apparently fixed some other people's problems. Hasn't helped me yet though.

[some_kid6]

UPDATE: Problem solved! I used CCleaner and cleaned up my registry. Then I uninstalled all of my USB ports and restarted. I got a code 19 error, so I reinstalled the drivers manually and everything is fine now. Thank you so much for your help!