One of my client pc’s kept crashing about 1 minute after login with “The instruction at 0x745f2780 referenced memory at 0x00000000. The memory could not be read”. I installed the hotfix at kb927891 but before it could finish it crashed again, but this time it prompted me to send data to microsoft and I did – that then came back with a message to install the patch that I’d just applied (although I hadn’t rebooted). Nice going with patch management Microsoft! Bearing in mind this happened on a pc which is up to date as of yesterday with windows patches via windows updates, you’d have though this sort of thing should not happen. I am not sure why it happened this morning when the initial patch came out some time last year – very strange.