I have Windows 7 on a Sony Vaio laptop and am using Microsoft Security Essentials. I came across this site because I was following the steps from a Malware Removal Guide (http://www.selectrealsecurity.com/malware-removal-guide). The first time I ran TDSSKiller, it found and removed something, and prompted me to reboot. Upon reboot my PC wasn't able to load windows, so it went into recovery mode which didn't work and the only way to load windows was to go to a restore point from earlier in the day. Once I did a system restore, I ran MSE which found Alureon.FP, Sirefef.J. I removed them with MSE. I was not prompted to reboot, so I ran TDSSKiller again. This time it found nothing. At this point, MSE popped up and said I had Sirefef.B, so I removed it, and was prompted to reboot. Upon reboot, I was not able to load Windows again and had to do another system restore in order to get into Windows. I have ran MSE and deleted the viruses, only to have MSE say I still have them a few minutes later. I have also tried running Malwarebytes Anti-Malware and SUPERAntiSypware, both seem to clean my computer, but I am still not able to load Windows upon reboot and have to do a system restore. I seem to be in this vicious circle where I clean my computer, reboot and am not able to load windows, so I restore to a point with the viruses intact. Another thing I have noticed is my firewall is not working properly, when I click on "Use recommended settings" I get Error Code 0x80070424. I am not sure what to do at this point and any help is greatly appreciated. Thanks in advance!