Greetings, New here. Just downloaded Malwarebytes a couple of nights ago after a rouge "Security Center" virus infected my machine. After a few "tweeks" of my own, I was able to actually get Malware to update and run. It worked wonderfully!! Fast forward to last night. Surfing along when "WHAM" I get a "new" Rouge (read fake) Security Virus called "Security Soft." It immediately freezes my machine and starts running a supposed "scan" and listing 10 Gagillion things infected, yadda, yadda.... I ignore it and try to fire up Malwarebytes...no dice. Try my browser...locked. Try Norton...no go. Nothing works other than a stupid pop-up ranting of the Doomsday of my machine by this virus. Soooooooo.... I re-boot and immediately upon getting back to my desktop, I hit a restore point, effectively reseting my registry to a couple of days ago, then...having done that, re-boot once more and Ta Da!!! I can Run Malwarebytes!! Did a full scan...all drives...the program once again works flawlessly. Notice!!! I did not try to get the program to get an update. I had a thought that any attempt at the internet would trigger the new virus off again even though I had restored my registry to an earlier time. Malwarebytes finds the little bugger and I have it stomp the ugly out of it. THEN....I ran a "Quick Scan" just to be sure....Oh yeah...it's Gone!!!! I'm a happy camper!!! But alas, it was not to last. After the scans, I tried to get Malwarebytes to get an update....."Connection Failed". Sooooo I open my browser..."DNS Error, Unable to connect, yadda yadda" Open up my network connections and check my ethernet card. Run a repair, everything checks out. Re-boot, try again...nada. Then it occured to me...sometimes, on rare ocassions with XP-Home....settings can get "confused" after so much tweeking of registry files and settings, so I decided to try something simple. If you still cant connect to the internet and your card (ethernet) settings say all is well, right click the connection and disable the card. Yes that's "disable" the card. Wait like 30 seconds then click "Enable." and try again. Some device drivers tend to lock up, in particular after a network attack. In combination with fixing erroneous registry errors, sometimes that may be all it takes to get back on-line. Well, worked for me at least. To get to your network card in XP, go to "Control Panel" select "Network Settings" right click your connection and the rest is pretty simple. Specs: CPU: AMD Phenom Quad Core H/D: 500 Gig RAM 4 gig Antivirus: Norton Corporate Edition with Firewall.