Windows 10: Deleted Windows Defender service

Split from this thread. Run System Restore offline via Windows RE. It's more effective. How to Run System File Checker SFC OfflineIf that doesn't help, do thisownload defender_diag.bat.Right-click on the file and click Properties, click Unblock, and click OK.Run the batch file as administrator.The Batch file queries Defender-related settings/Policies and outputs the results to a log file. Upload this log to your OneDrive and share the link here. Note: Before uploading the log to your OneDrive, edit the defender.log file and remove your Email ID if found.Hi Ramesh!i got the same pro

:)

 

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

 

Securing Windows 2000/XP/Server 2003 services HOW TO

I will try changing their settings sometime, the one thing I've noticed about this guide is that it doesn't list the Windows services that NEED to be left as local system, so some people might not be too sure what they're doing and worry about any that aren't listed. Just a suggestion that you might want to include in any future revisions. *Smile

The non-default ones I have that you have not listed are:

.Net Runtime Optimization Service v2.0.50727_X86
Ati HotKey Poller
ATI Smart
AVG E-mail Scanner
AVG7 Alert Manager Server
AVG7 Update Service
BlueSoleil Hid Service
Bluetooth Support Service
ewido anti-spyware 4.0 guard
iPod Service
Messenger Sharing USN Journal Reader Service
Service Layer
Windows Defender Service

The problem is that the only ones of these I actually use are The AVG and Windows Defender services and occasionally the "Service Layer" service (related to Nokia PC Suite) and the "Messenger Sharing USN Journal Reader Service" (related to WindowsLive Messenger). Anyway, I'll see how much I can secure those and post back how I get on. I'll try to test it sometime this week just I'm a bit waring of changing the AVG settings because the only way to test if it was still working would be for a virus to be detected... and I' rather I didn't get viruses!

 

Windows Defender problem

Hi Ernst,

To troubleshoot this issue, we suggest that you check the Windows Defender service if it's running. If you are using a third party spyware/malware program, it may disable the Windows Defender service. To do this, please follow the steps below:

• Press Windows + R key.
• Type services.msc.
• Right-click Windows Defender service and click
  Start.

Let us know the result.