When I try and open the Windows Update control panel it either never displays, or displays a partially rendered Windows Update window and never seems to "unfreeze".
I've tried cycling the Windows Update service (which seems to stall during the Stop process until I kill it using Task Manager), but that doesn't seem to help.
I've also rebooted several times.
This started happening after installing today's (4/12/2011) patches. I hadn't installed patches in several months, so it could have been one of many different patches that caused it.
Short of uninstalling the patches I just installed, are there any other debugging tips?