Some weeks ago I did a reboot of my computer due to some problems I was having with it. Back then Avast! antirus was installed on it and I was facing myself with it for the first time. I got used to it, but I also decided to download Malwarebytes, as I use to do with every computer I work with. It run smoothly until today when I got 3 infected files under the name of PUM: HKLM\SOFTWARE\Microsoft\Security Center|AntivirusDisableNotify HKLM\SOFTWARE\Microsoft\Security Center|FirewallDisableNotify HKLM\SOFTWARE\Microsoft\Security Center|UpdatesDisableNotify As I never got this menaces to show up in a Malwarebytes scan before, I'm completely puzzled by them. Please, can someone tell me what I should do with them. Are they disabled by a spyware? Or are they only popping up because of some new malwarebyte's feature? Thanks for reading me. Forgot to say that I have Windows XP service package 3