Windows Update don't work anymore since Dec 16 ?

I don't think there's anything wrong with it, although you may want to consider uninstalling it and then reinstalling from a fresh download.

Assuming you've tried all the other tutorials I've provided, try these:
SFC /SCANNOW Command - System File Checker and Repair Install - by Brink

Have you edited the registry or used programs that do?

Do you use "Tuning" or "optimizing" programs on your computer?

Have you disabled any services? Last resort would be to uninstall those updates from that day and try to reinstall them one at a time. I gave you the tutorial earlier.

symetric said:

DustSailor said:

Assuming you've tried all the other tutorials I've provided, try these:
SFC /SCANNOW Command - System File Checker and Repair Install - by Brink

I did not use any "tuning" I only use ccleaner... to clear my temp files...

I did not disable services.. I checked the windows update service and it's normal...

Symetric, do you use Ccleaner to clear temp files or internet temp files? Try not to clear temp files for the rest of the time we are troubleshooting, but clearing internet temp files should be fine. So long as you only use Ccleaner for what you've mentioned, it shouldn't be a problem.

However, I recommend not using that program unless you know more of what you are deleting, and also try not to use it at all while we troubleshoot your problem.

I requested help on this problem. Give it some time for someone to respond

Hi symetric,

Trying to correct an update error/hang has got to be in the top ten list of hardest problems to solve in computing.

From what I have seen so far in this thread especially now that you have un-installed the updates of December 16th, you are now two cycles out of updates. No matter what you have tried, nothing works.

If you were prudent, and have made backups of your HDD before all this started I would use them to restore your machine, if not you could do a Factory Restore. If you tell us the make, and model of your machine, we can help with that.

If neither of those are possible I would do a Clean Install Windows 7, but with this method you will need either a OEM or Retail disk.
Yes, no matter what method you decide to use it will be difficult, but at least you would know you are going to see light at the end of the tunnel.

This post by gregrocker offers some useful tips in getting prepared: Reinstalling Windows 7

You will need to prepare by backing up all of your important data, and run a program like Belarc to retrieve any hardware product numbers, and software keys.