Security essentials not updating
Restarted computer a lot of times now, checked for Microsoft Updates in general, but nothing shows up.
EDIT: I've opened a bounty for this, because I really don't know what to do anymore.
But you can download its offline updates appropriate for your version of Windows. The update files are executable files and can be installed easily without much interaction.
To verify the status MSE: Open Microsoft Security Essentials, click Update, and then see the virus and anti-malware definitions status.
In order to do so, you need to: If the issue is with your computer or a laptop/notebook you should try using the Reimage Plus Software which can scan the repositories and replace corrupt and missing files.
If the issue is with your computer or a laptop/notebook you should try using the Reimage Plus Software which can scan the repositories and replace corrupt and missing files.
This works in most cases, where the issue is originated due to a system corruption.
Microsoft has also shared a few known methods to fix this annoying issue which are mentioned in a simple and easy to understand language as following: If any or all above mentioned services are not running or not set to Automatic, double-click on the service, set its Startup type to Automatic from the drop-down list, Apply the changes and click on "Start" button to immediately start it.
If you find it, either change its values to 0 or delete the DWORD. Close Registry Editor and restart your computer to take effect.