Hello all, I hope someone will take the time to help me out with my PC problems as I have struggled day and night now for over two weeks to no avail. Earlier in Apr. a malicious website loaded something the instant I hit it that Grisoft's AV said was called "Dropper." I quarentined it and then used GoBack to revert to a prior time. I then noticed my free Sygate firewall telling me of repeated port scans and once, an intrusion detection. I upgraded the firewall to the Pro version. I purchased TrojanHunter and it said I was clean. I used Spybot S&D and it again found and removed Dropper. I then found that I was unable to download anything without it being corrupted, except updates to TH and AdAware. The attacks continued and I did an online scan with Bit Defender, which found the Byte Verify Trojan, two of whose exploits it described as "get access" and "open channel." Unable to download any remedy I deleted AVG and bought the disks for McAfee. McAffe found and quarentined the Byte Verify Trojan. I then bought ProcessGuard and trained it for a few days. It of course didn't like TH Guard so I disabled same. It also wanted to restrain many functions of McAfee's AV. I allowed McAfee to do what it wanted as I wanted it's full functionality. Then I saw that Spybot S&D had a beta rc4 version available so I downloaded that. In deleting the rc3 version the process was interrupted because I had forgotten to disable the "tea timer" (execution protection?) in my system tray. The instant I disabled the "tea timer," McAfee popped up and said it found two Trojans. In a panic I deleted these without even noting their names or any other info about them. I then realized I had been training ProcessGuard on an infected system so I disabled all it's protections. Then yesterday I bought TDS-3, got the keyfile this morning, upgraded and ran it and it said I was clean. Don't know if it was checking for NTFS alt. data streams by default or not. At this point Task Manager is missing. I had thought that ProcessGuard had disabled it, but now that PG itself is disabled, Task Manager is still gone. When I press Ctrl+Alt+Del, nothing pops up and the system makes that noise that it does when you do something it doesn't like. I am also finding that when on the Internet the Sygate firewall will sometimes crash leaving the system frozen and necessitating a hard re-boot. The system will also freeze the same way when offline as it did during a scan by TH yesterday. At one point in all this I used GoBack again and it told me that my system had recovered from a serious error (kernal fault). Norton's Windoctor says all is well. The system seems seriously hosed and yet all my applications tell me that it is fine, which it surely is not. My trial version of Port Explorer finds nothing suspicious either. The instructions with Processguard say to install it on a clean system, which I apparently did not do. How should I now proceed? I am exhausted mentally at this point. Could this be a rootkit? Manticmeister PS- As I was writing the above, my ports were scanned again. I went offline and tried to bring up McAfee AV to no avail. System again needed hard re=boot. I am desperate at this point! Manticmeister.