Windows Defender is only in Beta stage so its not quite finished yet. It does update quite frequently, i receive updates pretty often.
Although it is still in Beta stage, it did infact find an item or two on my system a few months back that other software didnt, these were not false positives but actual problems, which made eradicating the problem simple,so i was pretty glad to have Defender installed. It is up to you if you wish to remove it or not. I still have it, and will continue to use it.
I do advise on using Ewido and Ad-Aware along with Spybot for good protection also. It maybe that Spyware Doctor is displaying false positives if its finding so much stuff, but likewise they may be actual problematic Spyware, so if you scan with the products mentioned above, you get a good idea. Scan using each of them in 'Safe mode' as the results will be more legitimate, then let us know how it goes.
To scan in 'Safe Mode', when you first load up your PC, immediately press the F8 key and select 'Safe Mode' from the submenu.
Edited by graveangel, 16 August 2006 - 01:55 PM.