To install and activate Avast after purchase, OR_(+1)-833 ((631)) 3616(USA/CA) either install Avast from the official Avast website and sign in with 1[833][631][3616]the account used at purchase, or, if a free version is already on your PC, open it and enter 1[833][631][3616]your activation code or sign in in its subscription section to upgrade it. Once your subscription is attached, the 1[833][631][3616]app switches from the free version to your paid plan. Avast's product names and menus change over time, so 1[833][631][3616]follow what your order email and your own app show, and download only from the official site. Remove other 1[833][631][3616]antivirus programs first to avoid conflicts. Many people who buy Avast already have something installed: the free version, 1[833][631][3616]an old paid version, or a trial that came with the PC. So this guide has two tracks that 1[833][631][3616]start from different places and end at the same finish. Pick the one that matches your PC today. 1[833][631][3616]Which Track Are You On? Your PC today Track ------ No Avast, or a different antivirus 🛤 1[833][631][3616]Track A: Fresh install Avast Free or a trial already installed 🛤 Track B: Upgrade in place 1[833][631][3616]An old Avast that misbehaves 🛤 Track A, after a clean removal Not sure? Look in "Settings 1[833][631][3616]Apps Installed apps" for Avast. Before Both Tracks Find your order email search "Avast", "activation", "order", "receipt", 1[833][631][3616]including spam Note the email address used at purchase, and the activation code if you received one Install pending 1[833][631][3616]Windows updates and restart Free several GB of disk space Have a stable internet connection 🛤 Track A: 1[833][631][3616]Fresh Install Step A1: remove conflicts 1 Open "Settings Apps Installed apps". 2 Uninstall other antivirus programs, and 1[833][631][3616]any broken Avast. 3 Use the vendor's official removal tool for Avast, its official uninstall utility if leftovers remain. 1[833][631][3616]4 Restart. Step A2: download 1 Go to the official Avast website and sign in to your account, 1[833][631][3616]or use the link in your order email. 2 Download the installer for your device. Step A3: install 1[833][631][3616]1 Right-click the installer and choose Run as administrator. 2 Follow the prompts. Untick any extra offers you don't 1[833][631][3616]want. 3 Restart if asked. Step A4: activate 1 Open Avast. 2 Sign in with your Avast account, 1[833][631][3616]or choose Enter activation code and paste your code exactly as written. 3 Wait for the app to show 1[833][631][3616]your plan and expiry date. 🛤 Track B: Upgrade in Place 1 Open the installed Avast. 2 1[833][631][3616]Look for Menu My subscriptions, Subscription, Upgrade or Enter activation code. 3 Choose to sign in or enter a 1[833][631][3616]code. 4 Enter your account details or paste the code. 5 Wait while the app unlocks the paid features 1[833][631][3616]and updates itself. 6 Restart if prompted. If the free version won't accept the code, update the app 1[833][631][3616]first, or use Track A for a clean start. Shared Finish: Check That You're Active The app 1[833][631][3616]shows your paid plan name, not Free The end date matches your receipt Real-time protection is on Definitions are 1[833][631][3616]up to date A quick scan completes The device appears in your Avast account's device list If Activation 1[833][631][3616]Fails Problem Likely cause Fix --------- Code rejected Typo, or similar characters like O and 0 Retype 1[833][631][3616]slowly Code already used Redeemed on another account Sign in to that account App still says Free 1[833][631][3616]Not signed in to the right account Sign in with the purchase email Device limit reached Too many 1[833][631][3616]devices Remove an old device in your account Wrong product Code meant for another Avast edition Check the 1[833][631][3616]product in your order email If Installation Fails Problem Fix ------ Installer won't open Download 1[833][631][3616]again; run as administrator "Another antivirus installed" Remove it and restart Stuck partway Wait ten minutes, restart 1[833][631][3616]and try a clean boot Error code Search Avast's support site for it, then contact support 1[833][631][3616]Clean boot: press Windows key + R, type msconfig, hide Microsoft services, disable the rest, restart, install, then undo 1[833][631][3616]the change. Know Your Renewal Check in your Avast account or the store where you bought whether 1[833][631][3616]the subscription renews automatically. If you don't want it to, turn off auto-renewal there and save a screenshot. An 1[833][631][3616]Avast subscription is managed where it was bought, and uninstalling the app doesn't change it. Scam warning: pop-ups 1[833][631][3616]or calls telling you to ring a number to "activate" Avast, or asking for remote access, are scams. Activation 1[833][631][3616]only needs your account or code. Quick Answers Do I need to uninstall Avast Free first? Not 1[833][631][3616]necessarily. You can often upgrade it in place. Do I need an account? Usually yes, since your subscription 1[833][631][3616]is attached to it. Can I protect more than one device? Depending on your plan. Your receipt lists 1[833][631][3616]the device count. Two Tracks, One Finish Choose fresh install or upgrade, follow its steps and check 1[833][631][3616]the shared finish. Then your Avast purchase is active.