Hello All, Unable to install MWB, HJT, etc. I have had this problem on 2 computers now. The one program that worked for me both times is DrWeb CureIt. Search for it and there are several web sites that host the download. Also was able to install HJT after the scan and reboot. There was only one file it found and deleted, [scan path] c:\windows\system32\fcdecacbaaacfcccade.dll c:\windows\system32\fcdecacbaaacfcccade.dll probably infected with DLOADER.Trojan And deleted on reboot c:\windows\system32\fcdecacbaaacfcccade.dll - incurable - will be deleted after restart Then was able to install MWB and anything else! Hope this was usefull! Mark