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You tried activating your Trend Micro Maximum Security, Trend Micro Internet Security, or Trend Micro Antivirus Plus Security program, but all you get is this confusing message:

"You have not provided a valid activation code."
"Invalid Activation Code."

No worries, you're not alone. This happens to the best of us!

Why Did This Happen?

You may have typed your activation code/serial number incorrectly, or perhaps you've got a new one for your subscription.

How Do I Fix This?

Double-check the activation code. Where did you get your Trend Micro software?


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  • One-Time Purchase: Buy it once and use it whenever you need. Once purchased, our service is ready when you are β€” perfect for hassle-free, expert setup.
  • Remote Assistance: Our certified technicians will manage your installation from start to finish, remotely. Sit back and relax; we ensure a seamless setup without stepping out of your door.
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  • One-Time Purchase: Buy it once and use it whenever you need. Once purchased, our service is ready when you are β€” perfect for hassle-free, expert setup.
  • Remote Assistance: Our certified technicians will manage your installation from start to finish, remotely. Sit back and relax; we ensure a seamless setup without stepping out of your door.
  • Available 24/7: Contact us any time, day or night, to schedule your installation.
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If your activation code matches what you entered, follow these steps:

New User? Create your Trend Micro Account:

  1. Head over to https://account.trendmicro.com/setup/landing.
  2. Hit the Get Started button.
  3. Enter your email or mobile number, click Next.
  4. Create your own password, click Next again.
  5. Fill in your details to complete your profile.
  6. Now, enter that activation code/serial number and go back to the Trend Micro Installation window. Retype the code, and you're all set!

Already Have a Trend Micro Account? Sign in with your Trend Micro Account:

  1. Click the Sign In button on Option 1.
  2. Type in your email and password to log in.
  3. Follow the prompts, and your protection will be activated in no time!

Got a New Activation Code? Activate your new activation code:

  1. Visit https://account.trendmicro.com/setup/landing.
  2. Click the "Or sign in to your Trend Micro Account" link under the Get Started button.
  3. Sign in with your email/phone and password.
  4. Enter that new activation code, and then go back to the Trend Micro Installation window to retype it.
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