Windows 10: unable to install or run microsoft security essentials

When I try to run Microsoft Security Essentials I get the following error:




I thought maybe I need to install it. The install says:




Can someone clarify what I need to do, in order to run Security Essentials.


Thanks.


When I went to submit the question, the Windows Version drop-down doesn't offer Windows 10, so I chose Other.

I am running Windows 10 64-bit.

:)

 

Microsoft Security Essentials

What is Microsoft Security Essentials?

 

Windows 10 Windows Defender versus Microsoft Security Essentials

Hi Bryan,

Microsoft Security Essentials was upgraded to Windows defender and it was a default security software from Windows 8. You cannot have both as they are one.

Since you get this annoying popup at the startup i suggest you to disable any Microsoft Security Essentials entries in Startup tab.

• Open the Task manager. by pressing Press CTRL+Shift+ESC.
• click on Startup tab
• Right click on Microsoft Security Essentials entry and click on Disable.

Restart the computer and check if that helps.

 

Microsoft security essentials

How long have you been using MSE?



Have you scanned for malware? List
of Malware Removal Tools



Assuming this is a recent install of MSE and your computer is not infected see the following:



Be sure you have removed all other security software from the PC.



Sometimes remnants of prior security software will cause issues with your current antivirus program. A possible reason
for this problem is that you have conflicting security software still installed fully or partially on the PC.



Prior Security Software? McAfee, Norton, Spybot, Trend Micro? What about a trial version of an antivirus program that was pre-installed when the computer was purchased? If you reformatted/reinstalled the operating system
did you also reinstall a trial version of a security program? Did you remove such programs to include using the appropriate removal tool (McAfee Removal Tool, Norton Removal Tool, etc) and then reboot the computer? List
of anti-malware product removal tools



Recommend you review the following paying close attention to Common issues that can affect MSE: Microsoft
Security Essentials Installation Checklist.



Further information regarding MSE can be found at MSE
Consolidated FAQ



If the above suggestions do not help or are not applicable to your situation, you may need
to uninstall/reinstall MSE.

You should be able to remove MSE from Control Panel. Any problems uninstalling see: Uninstalling
Microsoft Security Essentials

Recommend you restart the computer to ensure the uninstall is complete.

You can download a new MSE Installation File from http://windows.microsoft.com/en-us/windows/security-essentials-all-versions



If you cannot resolve your issue please post back in this thread with further information.

Regards…

Top 10 Ways PUPs Sneak Onto Your Computer. And How To Avoid Them. | Emsisoft | Security Blog