Windows 10: Unable to run full scan on Windows Defender

  1.    30 Aug 2015 #1

    Unable to run full scan on Windows Defender


    I am unable to run a full scan on Windows Defender - the scan runs extremely slowly (only a dozen files per minute) and often hangs. The issue isn't that I have too many files - I've used only half of my available space and full scan worked perfectly well before I upgraded to Windows 10. Quick scan functions normally. How can I solve this issue?
      My ComputerSystem Spec

  2.    30 Aug 2015 #2

    ran into the same problem

    d/l one of the free programs

    to make sure everything is ok

    i stopped using W/D
      My ComputerSystem Spec


  3. Posts : 13,430
    Win 7 32, Win 7 64 Pro, Win 8.1 64 Pro, Win 10 64 Education Edition
       30 Aug 2015 #3

    Try running a SFC to see if there's anything that needs fixing. Be sure to run it 3 times since it doesn't always fix everything the 1st or 2nd time.

    If SFC could not fix something, then run the command again to see if it may be able to the next time. Sometimes it may take running the sfc /scannow command 3 times restarting the PC after each time to completely fix everything that it's able to.
    SFC Command - Run in Windows 10 - Windows 10 Forums

    Another option would be to do a repair install.

    This tutorial will show you how to do a repair install of Windows 10 by performing an in-place upgrade without losing anything.
    Repair Install Windows 10 with an In-place Upgrade - Windows 10 Forums
      My ComputerSystem Spec


  4. Posts : 2,289
    Windows 10.3 Home 1703 x64 (Home per choice)
       30 Aug 2015 #4

    SFC scan does not repair WD, as far as I can tell, never did restored mine (multiple scans).
      My ComputerSystem Spec


  5. Posts : 615
    Windows 10 Enterprise x64 (build 10586)
       31 Aug 2015 #5

    You could try restarting in Safe Mode and attempting to run the scan, although Windows Defender is not a very good antivirus so you might as well download Avast now if you want a free one that's actually decent. Safe Mode - Start Windows 10 in - Windows 10 Forums
      My ComputerSystem Spec


 

Related Threads
Solved right click scan in windows defender? in AntiVirus, Firewalls and System Security
I believe it's called adding it to the context menu.. I saw a registry hack for Windows 8 but i'm not sure how to do it in Windows 10.. I got used to using MSE in Windows 7 so now i'm lost not being able to right click a file to scan it...
Solved How to let Windows Defender scan manually? in AntiVirus, Firewalls and System Security
Hello, Having recently upgraded from Windows 7 to Windows 10, I had a question about using Windows Defender. I've come to understand that Windows Defender automatically scans in the background every now and then. However, one of the...
Windows Defender takes forever to scan in AntiVirus, Firewalls and System Security
Windows defender used to speed by, now it is slow as a snail. It got stuck 2x at a file. I had to cancel the scan and start all over. Now it is going but slow as can be, it has been scanning for 20 min and only half thru. anyone seeing this?
Solved Any way to set Defender to update/scan? in AntiVirus, Firewalls and System Security
Wondering if there is any option within Windows Defender to have it update and scan, I have MSE (W7) set to update and scan every day at 7:00pm and would like to do something similar with Defender in W10. I looked around and there doesn't seem to be...
When does Windows Defender scan? in AntiVirus, Firewalls and System Security
If I download an exe file from someplace, does Defender scan the file immediately for possible problems or do I have to request the scan? Alfred
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 02:37.
Find Us