UAC is going to be useless unless you really know what you are doing Back in the early years when Vista appeared I have seen malware than is useless thanks to user account control . Even if it is installs as admin , after restart the sample wants admin rights but is blocked from UAC/Defender as start-ups with admin rights are not allowed -http://i.techrepublic.com.com/gallery/186930-469-132.png- http://support.microsoft.com/kb/930367 Now malware started to act different . Not long ago I noticed my first sample that disables UAC (on Windows 7) and upon restart the threat will be able to gain maximum privilages. Just I came accross two more samples that also disable UAC if I start them as admin. I am not sure if there is a workaround . Any ideas ?