Windows 10: Security defender not popping up

My security is not popping when clicking on it. Nothing happen. I checked if someone in the household download and install other security programs but there is none.

:)

 

windows defender security notification

windows defender security popup keeps popping up and adding another notification to the list. How do I stop this?

 

windows defender security notification

Hi Kathie,

There are a few reasons why notifications or pop ups would show on your computer like to notify you to have a possible infection quarantined or removed from your computer's system or at times t could also be due to a suggestion to update your security values
for your Windows Defender. For us to understand your issue better, we would like to confirm a few details to see what troubleshooting can we best apply to your concern:

• Have you performed the troubleshooting steps that was suggested to you by
  Le Boule on this thread last January 2, 2018?
• Are you getting the same issue on other user profiles on your computer?
• Can you provide us a screenshot of the pop-up that you're getting?
• Do you happen to notice when do you get the pop-up on your computer?

In the meantime, aside from the troubleshooting steps that was provided on the previous post, we also suggest to have the troubleshooting steps advised to be started with a
clean boot, to ensure that any possible infection wouldn't be blocking the scans that you'll be performing
on your computer. If in the event that it is still blocked even when on clean boot, we advise that you
create a new user profile and name it as
Test. This is so you'll be able to proceed with the suggested troubleshooting and also isolate the issue if the issue we face is a possible infection or a possible system file corruption, thus leading to your computer's misbehavior.

Please don't hesitate to keep us posted on this and reply to this thread.

 

windows defender & security center services keep turning off


Are you running any other AV or did you have one running in the past? If you didn't use an uninstaller for the AV, then the remnants of it could be causing the problem. Normally any time you install an AV it disables Defender by default.

If you are getting any error codes please list those, that will be helpful in helping you.

As torre suggested, might be a good idea to do a reset or even a reinstall.

Reset Windows 10 - Windows 10 Forums

Windows 10 - Clean Install - Windows 10 Forums

There are also some suggestions listed here:

Unable to turn on Windows Defender in Windows 7 / 8 / 10