0x80016ba error message

I have vista 32 bit with the Defender built in.  I don't know when the error message started because I immediately added suites mcafee, I am also a subscriber of 3 years.   0x80016ba continuelly error MESSAGE is displayed at the start of vista.  I was unable to click the Defender to open it.  I tried to locate the defender in programs and features, as I have been loaded on the page official windows defender, but there is no icon for it.  Then I went to windows Security Center on my pc.  All security features have green on the buttons.  I opened the malicious program button, mcafee was on but defender was off.  I turned on Defender.  It seemed that th problem has been solved, software Defender begins to open.
But, after that I restarted the pc, what is the error message appeared and windows defender to stop opening.  I returned to the Security Center windows on my pc and clicked on the button of malware and defender was off.  I think that you will have to repeat this every time that you start the pc, if it is important for you, or until the issue is resolved.

Hello 1stmorpheus,

Thanks for posting on the Microsoft answers Community Forum.

I've split your question where you have published to assure you that your question was seen and respond as quickly as possible.

First, check to make sure that the Windows Defender service is started and the status is set to automatic. To do this:

Click Start and type "services.msc", then the .
If you are prompted for an administrator password or a confirmation, type the password or provide confirmation, then click on continue.
Scroll down the list of services of Windows Defender and click, and then on the link to the left to start or restart the service if it is stopped.

Right click on computer > manage > click Services in the left pane.

Look for Windows Defender on the right and double-click it.

The startup type should be automatic.

Then use the following article to check that Windows defenders definitions are up-to-date.

918355 KB - how do I troubleshoot Windows Defender definition update
http://support.Microsoft.com/kb/918355

Restart your computer and see if you still get the message error Windows Defender 80016ba.

If please post again and let us know the results and if you still need help.

Sincerely,

Marilyn
Microsoft Answers Support Engineer
Visit our Microsoft answers feedback Forum and let us know what you think.

Tags: Windows

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