Windows 10: Error due to Windows Defender Definition Update

I've been using a web application that's Java based and every time there is a Windows Defender Antivirus Definition Update, this application stops working. I've been keeping an eye on what changes when I get the error, so I have noticed the day there's an update is the day the error starts cropping up. The program's website is in the Java Exception List, so I know the problem isn't with Java. Everything will work again if I do a System Restore, but the update comes out every few days and doing System Restore every few days is not a workable solution. Any ideas what I can do? I have tried to find out how to disable the automatic updates but no luck so far in finding a set of instructions I can actually follow. I don't want to stop updating the Antivirus program but I am at a complete loss at the moment as to how to stop the error from cropping up all the time. Here's what the popup says: General Exception ClassNotFoundException: oracle.forms.engine.main. Any suggestions? Thank you.

:)

 

Definition Update for Windows Defender - KB2267602 error

Hello

When I run Windows Update I receive the following message concerning Windows Defender:





And when I try Windows Defender itself, I get the following:





The latest definition version installed is 1.245.410.0. Can anyone suggest what might be at fault here?

Thanks

.

 

Definition Update for Windows Defender - KB2267602 (Definition 1.225.3124.0) - Error 0x80070643

Hello,

With the issue description, I understand that you are getting the error code for Windows Defender Error 0x80070643. I will certainly help you.

KB2267602 is the latest Definition update for Windows Defender. I would suggest you to follow the suggestion as a workaround given by
johnhawk88 replied on 24, 2015 and check if it helps.

Definition Update for Windows Defender - Error 0x80070643

If issue persists you may try the steps given below and check if it helps.

Method 1: Windows Update troubleshooter.

Run the Windows Update troubleshooter to try and fix the issue. Refer to the link to run the troubleshooter:

I request you to run the Windows Update Troubleshooter and check it helps.

• I search bar Type Troubleshooter and click on
  Troubleshooting;
• Click on the Find and Fix problems tile and then click on the
  view all button the left pane.
• Click on the Windows update
  troubleshooter and run it.

Method 2: Reset Windows Update components
and test the issue.

I suggest you to reset Windows Updates Components. Resetting Windows Update Components and the Windows Update files helps to fix Windows Update errors.

http://support.microsoft.com/kb/971058

Disclaimer: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow
these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.

Backup the registry:
http://support.microsoft.com/kb/322756/en-us

Note: To reset the computer to normal mode after troubleshooting, please refer to “How to reset the computer to start as usual”
from the above article.



If the issue persists, I would suggest you to manually download the latest definition updates for Windows Defender.



How to manually download the latest definition updates for Windows Defender

http://support.microsoft.com/kb/923159

Hope this information helps. Please let us know if you need any other assistance with Windows in future. We will be happy to assist you.

 

Definition Update for Windows Defender - KB2267602 (Definition 1.213.1796.0) - Error 0x80070643

None of the steps above worked!

Windows update still says "Definition Update for Windows Defender - KB2267602 (Definition 1.213.2544.0) - Error 0x8007064"

Norton did shut windows defender off, but windows update is still trying to update windows defender!