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If you're seeing the Setup Not Complete message and the Error Code 0x90000000 while trying to activate Trend Micro Antivirus on your Mac, don’t worry! This guide will walk you through fixing the issue quickly.

Error Code 0x90000000 Window

Why Did This Happen?

The issue is caused by an incorrect system setting that prevented the activation from completing properly.

How do I Fix this?

Follow these simple steps to fix the activation error:

  1. Open Trend Micro Antivirus on your Mac.
  2. Once the program opens, you’ll see the message Setup Not Complete.
  3. Click the Complete Now button to start the activation process.
  4. Setup Not Complete Error Message. Click Complete Now

  5. Follow the on-screen instructions to complete the activation.

After you’ve completed these steps, your Trend Micro Antivirus should be activated and working correctly on your Mac!

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