Windows Defender in Windows 8.1 Will Not Turn On

Anonymous
2013-11-24T01:31:23+00:00

I recently updated Windows 8 to Windows 8.1.  Windows Defender had been on in Windows 8 and even after the update to 8.1.  I turned it off momentarily but have been unable to turn it back on.  To my knowledge, I have no other anti-virus programs running.  How can I turn it back on?

Windows for home | Previous Windows versions | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

165 answers

Sort by: Newest
Most helpful Newest Oldest
  1. Anonymous
    2015-03-03T15:53:19+00:00

    What do you mean by win32/ieEnablerCby, Besservice? Should one Google it? I gave up trying to make the Windows Defender to work, the document is empty so now I paid for Avast. So many people seem to have problems with the Defender that Microsoft should have already come with a site with instructions. Mine appears with as a blank document and when I try to open it a message says that they can't find it.

    Was this answer helpful?

    0 comments
  2. Anonymous
    2015-03-03T15:20:42+00:00

    win32/ieEnablerCby

    Was this answer helpful?

    0 comments
  3. Anonymous
    2015-03-03T14:12:49+00:00

    I can not turn on my windows defender either. I don't really know what I am doing to begin with so I am double messed up!

    Was this answer helpful?

    0 comments
  4. Anonymous
    2015-03-02T00:30:21+00:00

    Was this answer helpful?

    0 comments
  5. Anonymous
    2015-03-01T19:58:05+00:00

    Hi Rajesh, I followed your instructions  for turning on Windows Defender. Error 577 is showing for WdNisSvc and for WinDefend. In recovery option I am seeing INVALID_HANDLE. I am pretty sure that I have malware on this PC.

    Was this answer helpful?

    0 comments