@MysteryFCM - Thanks for the reply, I did make a post about the first IP that I had trouble with for a product called Weather Clock, apparently the update servers which are based in London, are owned by a Russian and your software considers them bad people, so it blocks the updates, which it does hourly... and to block updates for a piece of paid software is just a nuisance. Posting this IP got me no where, it's still blocked, and so posting the other IP's is just as pointless because I know who they are, what they do, who owns them, etc. Some of the other more innocuous things that are being blocked are an add on for firefox that I use and some forums that I monitor, but despite these being legitimate sources of information, your software thinks they are hosted on servers that are owned by people with questionable morals and so it blocks access to them. grrrrr. As I said in my original post, it's a fine idea and I applaud the concept, but at present it's unworkable for me and I'm grateful for a way to disable it in the registry! @Porthos - Thanks for the info, don't know why I missed that post when I searched... much obliged to you! @Firefox - with all due respect sir, it's none of your business why I restart my system so often, but I appreciate your reason for asking the question and let me assure you it's not because of lock ups or malware. For the record, I didn't 'blame' MBAM for anything, I just find it's persistent blocking of IP's I require access to, to be troublesome. @Swandog46 - Thank you for the link. @AdvancedSetup - All in all, I'm disappointed that white list is not on the cards at present, I understand there are probably technical reasons for this however I hope you can find a way to make it work.