Hi just logged into the forum and hope someone can help. I have tried to install this update six times today (07/05/12) after it was flagged as an important update this morning. Looking at my update history it also failed to instal on the 18th October last year but it has not bothered me since and i have not noticed it until now. Of the seven attempts I had the following error codes from earliest to latest : 800B0100, 80246007, 80010108, 8024200D, 8024200D, 8024200D, 8024200D. I have followed advice from MS running KB947821 and FIX IT also disabled my Norton 360 firewalls and auto protect but to no avail. If anyone can help please bear in mind I am not a techie so will need to be told what to do fully. I have read advice on editting the registry but I do not go there! There be dragons!! Also I do not have a DVD with Windows 7 as it was not supplied with my PC and I don't want to restore my computer and lose all my installed software. Any help would be much appreciated. Should I just hide the update and ignore it or will that come back and bite me? Thanks in anticipation.