Windows Defender could not start when you try to update

"Windows Defender installed Windows Defender service was able to start. Make sure you have sufficient privileges to start system services. »

Should I try WinDefender UN-installing & then re-install? I don't understand why I get this message!

Hello

1. have you made changes on the computer recently?

If you use a spyware/malware third party program, it may disable the Windows Defender service. To restart the Windows Defender service, follow these steps:
 
a. Click Start, type Run. (You can also use Win Key + R)
b. type services.msc
c. right-click Windows Defender service and click Start.
 
However, if you do want to use the program at all, change the startup type to "Manual" in the Services properties. Right-click Windows Defender, and then click Properties to display the option.

Reference:
Troubleshooting of Windows Defender
http://support.Microsoft.com/kb/555957

I hope this helps.

Tags: Windows

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