Windows 10: Cannot longer start Microsoft Defender on Win10 22H2

My PC with Windows 10 crashed recently because of an power outage, while the upgrade to 22H2 was on its way. After power came back, the Windows installation was totally broken, unable to boot. Finally I could recover the system to its previous state and repeat the 22H2 update.But after that, I received error messages, that Microsoft Defender is not active.Clicking on that message, I see a message, that the page is not available, as my administrator has limited the access. BTW I am the admin of this PC and I tried everything also with an freshly created admin account.Windows Update shows a lot

:)

 

Defender updates no longer shown

Hi,

Thank you for posting the query on Microsoft Community.

I appreciate your interest on Windows 10.

I suggest you to follow the steps below:

• Type defender in the search box.
• Click on update.
• Check for the date on which defender is being updated.
• If the recent date is mentioned then it will not show in the Automatic Updates.
• Also click on update definition and check if any update is pending.

Please get back to us with updated status. We will be happy to assist you further.

 

Defender updates no longer shown

Sorry but I just want to see Defender updates listed in my update history. Updates for office 2010 etc are shown so why not Windows Defender?

 

Windows defender will not start - Error code 0x8007139f

Hi,

Thank you for posting your query on Microsoft Community forum.

Let's try the below steps and check if it helps to resolve the issue.



Step 1: Check for updates in Windows Defender
and update it.

To check for updates in Windows Defender, follow these steps:

• Start Windows Defender if it is not already open. To do this, click
  Start, type Windows Defender.
  
• Check for new definitions. To do this, click Check for Updates Now.

Step 2: Manually install the update definitions
and check if it helps.

To manually install the update definitions, follow these steps:

Visit the Security Portal at one of the following Microsoft Web sites:

Refer:http://www.microsoft.com/security/portal/ADL.aspx


Keep us posted to help you better.