I have had two laptops in the past week that are having issues updating Windows Defender. Both laptops didn't have Defender installed before I touched them. The first had small amounts of virii/spyware present, but was successfully cleaned and eventually was able to update. Basically I just kept trying, and trying, and trying. Not sure what triggered it or changed, but eventually this one got the updates. Laptop number two was a fresh install of the OS, still not able to update. There isn't really a specific error however, it simply states that Windows Defender cannot find any new signatures or something like that. Anyone else having problems lately, or any suggestions I can try? As it stands I need to update laptop #2 still, but would like to know how to avoid this headache in the future.