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How to Install Trend Micro for Best Buy on Desktop or Laptop

LAST UPDATED: MAY 01, 2025

Are you looking to protect your desktop or laptop from malware and threats using Trend Micro Security, a product purchased from Best Buy? We’ll guide you through the installation process, step by step.

Download and Install on Windows

Before you begin, make sure your desktop or laptop meets the minimum system requirements to run Trend Micro:

  1. Download the installer: Click the link below to start downloading:
    Download Trend Micro for Best Buy on Windows
  2. Run the installer: Double-click the downloaded file. If the User Account Control window appears, select Yes.
  3. Follow the instructions: Complete the installation by following the prompts.
  4. Activate your protection: Enter your account information to activate Trend Micro.

Download and Install on Mac

Before you begin, ensure your Mac meets the minimum system requirements to run Trend Micro:

  1. Download the installer: Choose the installer that matches your macOS version:
  2. Open the installer: Click Install Trend Micro Antivirus.
  3. Follow the instructions: Complete the installation by following the prompts. It’s as easy as following a recipe!
  4. Activate your protection: Enter your account information to activate Trend Micro.

Need Billing Information for Your Best Buy Purchases?

Only Best Buy can access the billing information for your purchased products. To get the details you need, please contact Best Buy Geek Squad directly.

See also

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  1. OVERVIEW………………………………………………………………………………………………………………………………. 3
  2. TREND MICRO LICENSE REQUEST PORTAL …………………………………………………………………………………….. 3
  3. SUPPORT ………………………………………………………………………………………………………………………………… 3
  4. INSTALL TREND MICRO MAXIMUM SECURITY ON A WINDOWS DEVICE ……………………………………………… 3
  5. INSTALL TREND MICRO MAXIMUM SECURITY ON A MAC DEVICE ……………………………………………………… 9
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 3 of 14
  6. Overview
    This document describes how to install Trend Micro Maximum Security on a home device.
    Caution! Trend Micro Maximum Security is to only be installed on personal and homes devices
    for US Courts employees. It should not be installed on Judiciary owned assets. The Trend
    Micro Password Manager software (Section 3, Step 7) is prohibited from installation as judiciary
    usernames and passwords should not be stored in the Trend Micro cloud environment.
  7. Trend Micro License Request Portal
    Prior to accessing to your Trend Micro Maximum Security Home Use license, visit the Trend
    Micro License Request Portal: https://www.carahsoft.com/vendors/trendmicro/home-uselicenses-us-courts and complete the request form. Once the required information is provided, a
    20-character Serial Number/Activation Code is provided via email.
    Requests for activation codes will be fulfilled in 24 hours. If a request is received after business
    hours, on a weekend or holiday, it will be fulfilled on the next available business day.
    In the event that an activation code is not fulfilled, please email Ryon Williams with Carahsoft
    at ryon.williams@carahsoft.com or Leon McGovern at Leon.McGovern@carahsoft.com.
    Please have this information available when starting your license download process. The rest of
    this document describes how to apply this Serial Number/Activation Code.
    For installation instructions, watch this video tutorial or follow the steps detailed below.
  8. Support
    For support with installing Trend Micro from a personal Windows or Mac computer, use the
    following methods:
  • Trend Micro Technical Support Center: 1-888-762-8736
  • Go to the Trend Micro Support Website to get help online or open a support case
  1. Install Trend Micro Maximum Security on a Windows
    Device
  2. Check if your Windows PC meets the system requirements by using the following link:
    System Requirements (Trend Micro Security)
  3. Download the installer file to begin the installation by using the following link:
    Trend Micro Maximum Security Installer File
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 4 of 14
  4. Double-click TrendMicro_17.0_HE_Full.exe to run the installer.
  5. Click Yes when the User Account Control Window appears. Trend Micro checks if the
    computer is compatible for installation. Wait for the installer to extract the files needed
    for the installation.
  6. Select the Paid Version option and enter the 20-character serial number you received by
    email from Trend Micro, then click Next.
    Note: If you receive the error message Invalid Serial Number, refer to this Knowledge
    Base article for instructions: Error: Invalid Serial Number.
  7. Click Next on the Data Disclosure Notice.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 5 of 14
  8. Read the License Agreement, verify that the Also install Password Manager for free
    option is not selected, and click Agree and Install.
    Caution! The Also install Password Manager for free option at the bottom of the
    License Agreement page must not be selected, as the product is NOT hosted in a secure
    government cloud, but in a commercial cloud. Under no circumstances should Judiciary
    credentials be stored in the vault.
    The install will begin and may take a couple of minutes to complete.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 6 of 14
  9. Depending on if you would like to receive monthly security reports, select Yes or No.
  10. Provide a name for your home computer in the Computer name field.
  11. Enter your personal email address in the email address field, then click Next. This will
    begin the process of setting up a personal Trend Micro account.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 7 of 14
  12. Complete the information in the Account Information window and click Next.
  13. Confirm the account information is correct and click Next.
  14. Click Finish on the Protection Activated window to complete the installation.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 8 of 14
    Once the activation is complete, the main console of the Trend Micro Maximum Security
    appears.
  15. After installation, it is highly recommended that you update Trend Micro Maximum
    Security to gain the latest protection. To update, locate and click the Trend Micro icon
    from the system tray in the bottom right hand corner.
  16. In the window that appears, click Check for Program Updates
  17. If there are updates pending, this will download and install the necessary updates.
    Moving forward, Trend Micro will automatically update whenever there are updates
    available.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 9 of 14
  18. Click Close once the update process is completed.
  19. Install Trend Micro Maximum Security on a Mac Device
  20. Confirm your Mac meets the requirements:
    Device Requirements
    Antivirus for Mac 2020 Mac OS X®version 10.15 “Catalina” (10.15 or higher)
    Mac OS X®version 10.14 “Mojave” (10.14 or higher)
    Mac OS X® version 10.13 “High Sierra” (10.13 or higher)
    Antivirus for Mac 2019 Mac OS X®version 10.14 “Mojave” (10.14 or higher)
    Mac OS X® version 10.13 “High Sierra” (10.13 or higher)
    Mac OS X® version 10.12 “Sierra” (10.12 or higher)
    Antivirus for Mac 2018 Mac OS X® version 10.13 “High Sierra” (10.13 or higher)
    Mac OS X® version 10.12 “Sierra” (10.12 or higher)
    Mac OS X® version 10.11 “El Capitan” (10.11 or higher)
  21. Download the appropriate installer file to begin the installation:
    Trend Micro Antivirus for Mac 2020
    Trend Micro Antivirus for Mac 2019
    Trend Micro Antivirus for Mac 2018
  22. Open the installer file on your Mac device and click the Install Trend Micro Antivirus
    icon to begin the installation.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 10 of 14
  23. Click Continue to run a program to determine if the software can be installed.
  24. Once the System Check is complete, click Continue on the Welcome Screen.
  25. Read the Privacy and Personal Data Collection Disclosure policy, then click Continue.
  26. Read the License Agreement, then click Continue.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 11 of 14
  27. Click Agree when prompted to accept the license agreement.
  28. Enter the 20-character serial number you received by email from Trend Micro, then click
    Continue.
  29. Click Install on the Install Trend Micro Antivirus window.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 12 of 14
  30. Enter an administrator password when promoted and click Install Software.
    The installation process begins.
  31. Once completed, the Installation Successful window appears. Click Close to complete
    the installation.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 13 of 14
  32. After the installation is completed, Trend Micro Antivirus will install a new helper tool.
    Enter the username and password for the device and click Install Helper.
  33. Enter a Computer Name for your home device and click Next.
  34. Click Finish to complete the activation.
    Local IT Solutions Support (LITSS) Trend Micro Maximum Internet Security Install Guide
    Page 14 of 14
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