Windows Defender Won't Turn On


  1. Posts : 353
    Windows 10 Home 64 Bit
       #1

    Windows Defender Won't Turn On


    O.k....Out of curiosity I installed Avast free AV.....then decided to stay with Windows Defender, and so uninstalled Avast......now, Defender won't turn on, it tells me that "another anti virus programme" is running...... any help to turn it back on appreciated.......Del.
      My Computers

  2.   My Computer


  3. Posts : 353
    Windows 10 Home 64 Bit
    Thread Starter
       #3

    Thanks for that, I did try it, but to no avail......just wondering if system restore would work ?.........
      My Computers


  4. Posts : 5,442
    Windows 11 Home
       #4

    Del 80 said:
    Thanks for that, I did try it, but to no avail......just wondering if system restore would work ?.........
    If you have got one prior to installing Avast, it might.

    You can also try to run this as admin:

    [Batch] Windows Defender Enable - Pastebin.com
      My Computer


  5. Posts : 353
    Windows 10 Home 64 Bit
    Thread Starter
       #5

    O.k.....Just done a system restore, back to the day before I installed Avast......Windows Defender is now back on !!......Thanks for the replies......Del.
      My Computers


  6. Posts : 353
    Windows 10 Home 64 Bit
    Thread Starter
       #6

    Just an update to this thread.......on a second laptop, I couldn't use system restore to remove Avast, as I didn't know when it was installed (not my machine).....so used the Avast uninstaller, it worked fine, within seconds of the uninstall Windows Defender had turned itself back on, and was saying that it needed to do a scan......Del.
      My Computers


 

  Related Discussions
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 15:17.
Find Us




Windows 10 Forums