You see this error message while installing Trend Micro Security on your Windows computer:

"Installation Incomplete. Please use the Uninstall Tool and then try installing the software again"

Why Did This Happen?

The error message indicates that remnants of previous program versions are causing the installer to hiccup. This is often accompanied by error codes such as:

  • #1603, 3003, 0ex0ff0001
  • #1603, 3002, 0xe0220019
  • #1603, 3002, 0xe01a000f
  • #1603, 3003, 0xe0ff000b
  • #1603, 3002, 0xe01a000c

What Should You Do Next?

Don't panic! We have a simple solution. Follow these steps:

  1. Log onto your computer using an account with administrator privileges.
  2. Download the Trend Micro Uninstall Tool here.
  3. Double-click the downloaded file and click 'Yes' when the User Account Control window appears.
  4. Follow the instructions to complete the removal.
  5. Now, run the Trend Micro installer again. If you need the latest installer, get it here.

If you're still having issues, there's a chance that a recent Windows update is conflicting with Trend Micro Security. Here's what you can do:

  1. Press the Windows button on your keyboard and type "update history" in the search box.
  2. Choose 'View your Update history,' then select 'Uninstall updates' under 'Related Settings.'
  3. Locate 'Update for Microsoft Windows (KB5014019)' and 'Update for Microsoft Windows (KB5014697).' Double-click to uninstall, then click 'Yes' to proceed.
  4. Wait for the process to finish, then restart your computer.
  5. After restarting, try to install Trend Micro again.
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