first time on tech forum of any kind so go slow folks. I am running windows 7 32bit For years I've been set up on a home network. The other day I noticed when I open windows explorer other computers in the house are no longer under networks tab. if I click on networks it says "network discovery and file sharing are turned off, click to change" I click and nothing. I've then gone into network and sharing center/ advanced sharing settings and turned on network discovery and file and printer sharing...saved changes and it wont save they keep turning themselves back off. However if I go into windows Firewall and turn it off THERE MY NETWORK IS! So far ive run 2 WMI and windows Firewall repair programs. and gone through a tone of config steps in the start menu suggested by google searches. I need this network to work but dont want to be with out firewall protection. Last I did have a nasty virus a few weeks ago that I was able to get rid of with microsoft security essentials in safe mode but may have changed something there during removal.