To install and activate Trend Micro after purchase, OR_(+1)-833 ((631)) 3616(USA/CA) sign in to or create your Trend Micro account, enter your 1[833][631][3616]serial number if you received one, then download the installer for each device from your account or the link 1[833][631][3616]in your order email. Run it, and sign in with the same account when asked, so the subscription attaches 1[833][631][3616]to that device. Most Trend Micro plans cover several devices across Windows, Mac, Android and iOS, so the real 1[833][631][3616]job is rolling protection out to everyone in your household. Product names and pages vary by plan and region, 1[833][631][3616]so follow your order email and the official Trend Micro site, and avoid any look-alike pages. A multi-device 1[833][631][3616]plan is only worth its price if every device is actually protected. So this guide is a household rollout 1[833][631][3616]plan. You'll make a device roster, give each device the right app and tick them off one by one. 1[833][631][3616]Step 1: Build the Roster List every device the plan should protect. Plan covers: devices 1[833][631][3616]Serial number: Owner Device type OS Installed? 1 2 3 4 5 1[833][631][3616]Check your order email or account for the exact number of devices your plan includes. Put the 1[833][631][3616]most important devices first, such as the PC used for banking. Step 2: Prepare the Account 1 1[833][631][3616]Find your order email search "Trend Micro", "serial number", "order", "receipt", including spam. 2 Open the official Trend Micro 1[833][631][3616]website, using the link in the email or an address you type yourself. 3 Sign in, or create an 1[833][631][3616]account with your email. 4 Enter your serial number under Activate, Add subscription or a similar option. 5 Check 1[833][631][3616]that the product, device count and end date appear. Step 3: Install by Device Type Device What 1[833][631][3616]to do ------ 🪟 Windows PC Download the installer from your account. Right-click and Run as administrator. Sign 1[833][631][3616]in to finish. 🍎 Mac Download the Mac installer, open it and approve the system extension and permissions 1[833][631][3616]macOS asks for. 🤖 Android Install the app from Google Play and sign in with the Trend Micro 1[833][631][3616]account. 📱 iPhone / iPad Install the app from the App Store and sign in. Before 1[833][631][3616]each Windows or Mac install: uninstall other antivirus programs, install pending system updates and restart. On a Mac: 1[833][631][3616]open "System Settings Privacy & Security" and allow the system extension, and grant Full Disk Access if the app 1[833][631][3616]asks. Step 4: Sign In and Confirm Each Device After installing on each device: Sign in 1[833][631][3616]with the Trend Micro account The app shows the plan and days remaining Real-time protection is on The device 1[833][631][3616]appears in your account's device list A quick scan runs Tick the device off on your roster. 1[833][631][3616]Step 5: Review the Rollout Open your account's device list and compare it with your roster. Check 1[833][631][3616]Action ------ A device is missing Install and sign in on it An old device is still 1[833][631][3616]listed Remove it to free a slot You're over the device limit Remove one, or upgrade the plan 1[833][631][3616]A family member needs help Walk them through the same steps If Activation Fails Problem 1[833][631][3616]Likely cause Fix --------- Serial number rejected Typo, or similar characters like O and 0 Retype slowly 1[833][631][3616]Already registered Used on another account Sign in to that account App shows a trial Not signed in 1[833][631][3616]to the right account Sign in with the account holding the subscription "Maximum devices reached" The limit is 1[833][631][3616]full Remove an old device Region mismatch A regional version Contact support with proof of purchase 1[833][631][3616]If Installation Fails Problem Fix ------ Installer won't run Download again; run as administrator Conflict message 1[833][631][3616]Remove other security software, restart Stuck partway Wait ten minutes, restart, try a clean boot Clean 1[833][631][3616]boot: press Windows key + R, type msconfig, hide Microsoft services, disable the rest, restart, install, then undo the 1[833][631][3616]change. Keep Everyone Safe Over Time Keep every device updated. Check the device list at renewal time. 1[833][631][3616]Teach the household to ignore pop-ups that tell them to call a number. Know Your Renewal Check 1[833][631][3616]your account for the renewal date and whether auto-renewal is on. If you don't want to renew, turn off 1[833][631][3616]auto-renewal where you bought it and save the proof. Scam warning: pop-ups or calls telling you to ring 1[833][631][3616]a number to "activate" Trend Micro, or asking for remote access, are scams. Activation only needs your serial number 1[833][631][3616]and account. Quick Answers How many devices can I protect? It depends on your plan. Your account 1[833][631][3616]shows the limit. Do I need a separate code per device? No. One subscription covers the devices listed 1[833][631][3616]in the plan. Can I protect a phone as well as a PC? Usually yes, with the matching 1[833][631][3616]app. Roster, Rollout, Review List every device, install and sign in on each one, and review the 1[833][631][3616]device list. Then everyone under your Trend Micro plan is protected.