Is there any registry hack or any other solution for this? Every time, for example, Windows 7 is online validated and marked as original software, WU shows MSE as an optional download. I don't want this tho happen because my customers PCs have any other AV solution installed when delivered to them. Besides those M$ security solutions don't like MTK. Actually I know how to hide those updates on the list, but my customers don't. Just want to prevent MSE to be listed.