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You see this error while activating the Google Chrome extension:

Why did this happen?

You may have used a full serial number, which seats are already used up, when activating the extension.

How do I fix this?

Free up a seat through your Trend Micro Account:

  1. Go to https://account.trendmicro.com.
  2. Sign in with your email address and password.
  3. Look for the serial number you used.
  4. Click the X icon located on the upper-right corner of the device you wish to remove protection.
  5. Click Yes to confirm the removal.

    You can now use this again to activate your extension.

I bought it through Best Buy

Contact Best Buy Geek Squad to check your subscriptions or buy additional licenses.

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