Quite a while ago I installed Windows Defender. Then I un-installed it, but it seems some part of it is still hanging around. Several times a day I get this message:
Microsoft Malware Protection Signature Update Stub had encountered a problem and needs to close.
I go to Add/Remove programs and I see Windows Defender. However, when I try to un-install it it says it needs the feature I am trying to use is on a network source that is unavailable. It gives me an option to browse for the source, but I don't know what it is.
I thought I could try to re-install it and then take it off again, but it says I already have it running.
How can I fix this?