Can anyone please help me with this? I've tried everything I could think of and things that my techie pal have recommended to me, but so far nothing has worked. Here's what's happened so far: Because I've been running so terribly slow three nights ago while online, I decided as I always do to do an antivirus scan, and then a spyware scan. On my PC with Windows XP I have the complete Norton Internet Security Package with antivirus software, and I also have Spybot. I've done scans with both several times for the past few days, and both claimed that my computer was running fine even though it wasn't. So I decided to run Windows Defender, and it picked up after a full scan the following two items: * BrowserModifier:Win32/InstaFinder (Alert level: severe) * Adware:Win32/Altnet (Alert level: medium) So I had Windows Defender delete them. No prob, I figured. But I can't get rid of them! It looks like there is the possibility that it "may" be the cause of a Rootkit. So far aside from the above programs I mentioned, I have also tried using the following: the "Microsoft Malicious Software Removal Tool", which also claimed that it had removed the problem. But it didn't. Then I tried Lavasoft Ad-Aware SE personal. It was recommended by a techie pal of mine. When I used it, it listed a ton of things that had needed to be removed, including the two above programs. I told them to fix it, and it claimed that everything was clean, including the two above programs. To be safe, I turn off my computer for a while. Then I turn it back on. I did a full scan again with Ad-Aware, which claimed that everything was still clean. Then I rescanned a full scan again with Windows Defender again... and the two programs are still on here! I then tried purchasing online two full versions of two different programs which claimed that they could remove InstaFinder: XoftSpySE, and then NoAdware. Both did the same thing that Ad-Aware did: both had claimed to had found the problem, both had claimed to have removed it: but after having the computer off and then turning it back on, the two new programs I had bought were still claiming that the two above problems were gone, yet doing a full scan with Windows Defender shows that they are still there! And I am desperate. I'm ready to just take my PC to where I had bought it and pay for them to remove it, as I'm so desperate. I don't know how to get rid of the awful things, I've already tried two paid-for programs that didn't remove it (and which I'll now have to request my money back for since I'm not satisfied), and I just can't get rid of them! Can anyone PLEASE help me? I don't know what else to do apart from taking my poor PC in for repair!