Windows defender severely slows down debugger - by Josh Luth

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  External<br /><br />
		This item may be valid but belongs to an external system out of the direct control of this product team.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

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ID 776802 Comments
Status Closed Workarounds
Type Bug Repros 1
Opened 1/17/2013 8:26:22 AM
Access Restriction Public


When you launch your assembly using the Visual Studio Debugger and the Windows Defender service is running, it takes several minutes to launch. If you kill the defender process, the startup is reduced to seconds. Of course this depends on the size of your project, but never-the-less performance of the debugger is hampered by the Windows Defender service.
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Posted by Microsoft on 2/1/2013 at 12:05 AM
Thank you for your bug submission. The issue you reported appears to be on a released Windows Product. If this issue is severe, causing critical business situations or blocking your product development or deployment, please go to or call 1-800-MICROSOFT for assistance. For Microsoft premier customers, please contact your administrator, your Technical Account Manager, or your Microsoft premier account representative.

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Posted by Josh Luth on 1/24/2013 at 7:58 AM
It would appear the problem is becoming more severe. The whole build process is now slower when Windows Defender is running. I have to shut down defender to build in a reasonable amount of time.
Posted by Microsoft on 1/17/2013 at 11:42 PM
Thanks for your feedback.

We are rerouting this issue to the appropriate group within the Visual Studio Product Team for triage and resolution. These specialized experts will follow-up with your issue.
Posted by Microsoft on 1/17/2013 at 8:50 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(