Adding Trend Micro to a Mac is a simple job, and this guide shows it in the order you will see it on screen. You will sign in at Trendmicro.com/activate, add your serial number, download the installer, install it and check that your protection is on. Most people finish in about 20 minutes. Read a step, do it, then move to the next one.
Keep this short list in mind. The rest of the guide follows it.
Get your Mac and details ready
Sign in and add your serial number
Download the installer for Mac
Install and allow what your Mac asks for
Check that the protection is on
Check Your Mac
Click the Apple icon at the top left and choose About This Mac. Look at the macOS version. Trend Micro can change which versions it works with, so check the system requirements on the Trend Micro website before you start.
Check Your Free Space
Open the Apple menu, go to System Settings, then General, then Storage. Make sure there is room for a new program and its updates. If the Mac is almost full, remove files you no longer need.
Remove an Old Security Program
If you already use another security program, remove it first. Two security programs on one Mac can get in each other’s way.
Keep These Ready
Your serial number, from the card, the box or the order email
The email address you want for your account
Your Mac login password, since you may need it during the install
A steady internet connection
About 20 minutes with no rush
Open the Page
Open Safari or Chrome. Type trendmicro.com/activate into the address bar yourself. Wait until the page loads fully.
Sign In or Make an Account
Use the email you will keep for a long time. If you are new, make an account and confirm your email. The message can take a few minutes, so check spam if it is late.
Type Your Serial Number
Type the serial number exactly as printed. Check each character before you continue.
Characters That Look Alike
The letter O and the number zero look alike. So do the letter I and the number one, and the letter S and the number five. If a number fails, check these first.
Confirm Your Details
Pick your country and language if the page asks. Then confirm. Your plan is now added to your account.
Find Your Plan
Go to your account page and look for your Trend Micro plan.
Choose Mac
When the page asks which device you want to protect, choose Mac. Click the download button and wait for the file to finish.
Find the File
You will usually find it in your Downloads folder. Do not open it until the download is complete.
Open the Installer
Double-click the downloaded file. A window opens and guides you through the install.
Follow the Screens
The Welcome Screen
Choose Continue.
The License Terms
Read them and agree if you accept.
The Install Place
The default place is usually fine.
The Password Prompt
Your Mac asks for your login password so the install can go ahead. Type it and continue.
Wait for It to Finish
Keep the window open. When the install ends, you will see a message saying it is done.
Security programs often need a few permissions on a Mac. This is normal. Here is how to handle it.
Read the Message First
Your Mac shows a message that explains what the program wants to do. Read it slowly.
Open System Settings If Asked
The message may send you to System Settings, to the privacy or security area. Turn on the permission for the Trend Micro program, then go back to the installer.
Come Back and Finish
Once the permission is on, return to the install window and continue. If the install asks you to restart, save your work and restart.
Names Can Change
The names of menus and settings change between macOS versions. Look for the words in the message on your screen and follow them.
Open the Program
Find Trend Micro in Launchpad or your Applications folder. Open it and sign in with the same account.
Look at the Main Screen
Check that your plan shows as active, and that the program says your Mac is protected.
Run a First Scan
Start a scan and let it finish. The first scan can take a while, so keep the Mac on and plugged in.
Restart Once
Restart your Mac, then open the program again. If it opens normally, your setup is complete.
The Page Will Not Take My Serial Number
Check the characters one by one. Make sure you are signed in with the email you meant to use. Try another browser.
The Installer Will Not Open
Check your macOS version, then download the file again and make sure it finished.
The Install Stops Partway
Check your internet and your free space. Restart your Mac and run the installer again.
The Program Says Protection Is Off
Check that you allowed the permissions your Mac asked for. If you skipped them, open the settings area it pointed to and turn them on.
The Program Keeps Asking Me to Sign In
You may be signed in with a different account. Sign out in the program and sign in with the account that has your plan.
Keep the program updated
Run a scan from time to time
Keep your account email and serial number in a safe place
Restart your Mac now and then
Type web addresses yourself instead of tapping links in messages
What Is Trendmicro.com/Activate?
It is the web page where you add your serial number to your account and download the program for your device.
Does It Work on a Mac?
Yes, if your Mac meets the system requirements. Check them on the Trend Micro website.
Do I Need an Account?
Yes. You sign in or make one during the process.
Do I Need to Remove My Old Security Program?
Usually yes. Two of them together can cause problems.
Can I Use the Same Plan on More Than One Device?
It depends on your plan. Check the device limit in your account.
How Long Does It Take?
Often about 20 minutes, depending on your internet speed and how many permissions your Mac asks for.
Adding Trend Micro to a Mac is easy when you go in order: get ready, sign in, add your serial number, download, install and check. Start at Trendmicro.com/activate, take each screen slowly and allow the permissions your Mac asks for. If something stops, check your serial number, your account and your internet first.