Windows 10: Widows Defender Security icon disappeared when Trend Micro was uninstalled.

I run Windows 11. Used the Trend Micro uninstall tool. I cannot get the Windows Defender Icon to appear in the task bar. It is enabled under settings, but Defender does not appear in the start up section in Task Manager, so I can't even enable the icon from there.I did a system restore from an earlier time but no luck with restoring the icon. I have even done an sfc/scannow scan, but all was OK.Defender is actually working, and it's running OK in services, but I want the Icon back in the task bar.Any help would be appreciated as conventional ways of restoring the icon do not work or are un

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undetectable Trend Micro Internet Security 2008

Hello, I am trying to upgrade from Windows 7 to Windows 10. I performed the quick check, and it stated that everything was compatible except I needed to uninstall Trend Micro Internet Security 2008, as it wasn't compatible with the upgrade. I've exhausted
every option on Trend Micro's website to complete and uninstall, to no avail. It cannot be found. There is no listing of Trend Micro on my computer, whatsoever, and after installing their uninstall tool, and completing all instructions, restarting, etc.,
Windows 10 cannot complete the upgrade.

Any help/suggestions would be greatly appreciated, as I'm stumped.

 

windows 10 upgrade fail - need to uninstall Trend Micro Internet Security 2008

I am attempting a Windows 10 update, version 1709 and at about 25% update, it says Trend Micro Internet Security 2009 and Trend Micro Internet Security 2008 needs to be uninstalled. Trend Micro does not appear on my list of programs to uninstall. I downloaded
and ran the Trend Micro Uninstall Tool but that did not work either. I still have the same message and can't update Windows.

 

Forgot password to uninstall Trend Micro OfficeScan

Hi,



Thank you for writing to Microsoft Community Forums.



I understand that while upgrading from Windows 7 to Windows 10, you are asked to uninstall Trend Micro OfficeScan.



Since you do not remember the password for it, let us try the methods mentioned below and see if that helps:



Uninstall using Trend Micro Diagnostic Toolkit:



I would suggest you to try uninstalling Trend Micro using the Diagnostic Toolkit provided by Trend Micro. Refer the steps mentioned in the section
How to uninstall your Trend Micro Security program using the Diagnostic Toolkit
from the article
Uninstalling Trend Micro Security software on your Windows™ PC.



If using the Dianostic Toolkit doesn’t work, we might have to modify the registry to uninstall it. Refer the steps mentioned below:



Note: 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.



Follow the steps to take backup of registry.

1. Press Windows Logo key + R, to open
   Run dialog box.
   
2. Type regedit and click on
   OK.
   
3. Now, browse to the following path: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\TrendMicro\PC-cillinNTCorp\CurrentVersion\Misc
   
4. Once there, on the right pane, double click on
   Allow Uninstall and change the value to 1.
   
5. Click on OK.
   
6. Close registry editor and try uninstalling
   Trend Micro.
   

If you are unable to change the registry value, you may want to boot the computer into Safe Mode and then try changing the registry. Refer the section From Settings in the article

Start your PC in safe mode in Windows 10. Once the PC is booted to Safe Mode, try changing the registry value, restart the computer and uninstall Trend Micro.



However, if you are using Enterprise Edition of the product, you may also want to check Uninstalling
clients or agents in OfficeScan.



Let us know how it goes.



Regards,

Nikhar Khare

Microsoft Community - Moderator