Install and activate Avast Ultimate

Avast Ultimate reaches you as an activation code. The program comes from Avast. This guide covers the way from your order email to an active Avast on your Windows PC.

What you received

Your order confirmation email contains an activation code for Avast Ultimate. The same code is in your Lizensa account under My Library. Avast writes activation codes with hyphens, and you enter them with the hyphens.

• No installer comes with the order. You download the installer from Avast.
• The code covers more than one app. Avast Ultimate is a bundle. After you enter the code, Avast lists the apps in it, and you choose which ones to install now.
• The number of devices is part of what you ordered. Avast lets you activate the app on the number of devices stated for your product.

Before you start, make sure the PC is online and that you can open programs as administrator.

Get the software

Avast's own instructions for the Ultimate bundle start with Avast Premium Security, the program that carries the activation.

1. Go to the Avast website and download Avast Premium Security from Avast's website.
2. Save the file avast_premium_security_setup_online.exe.

If your browser warns about the file, download the file only from avast.com.

Install

1. Right-click avast_premium_security_setup_online.exe and select Run as administrator.
2. Select your language in the upper-right corner of the setup window.
3. Select Install.
4. Wait until the setup reports that Avast is installed.

The program is ready for the activation code once setup is finished.

Activate

With the activation code

1. In the Avast main window, select ☰ Menu, then Enter activation code.
2. Type or paste the code from your email, including the hyphens.
3. Confirm with the button Avast shows (Enter or Next). Avast may ask you to confirm once more.
4. If the code covers several apps, tick the ones you want. Remove the tick from apps you do not need yet.
5. Select Activate & install.

When it works, Avast tells you that the app is now active.

With an Avast account

If you have an Avast Account that already holds the subscription, you can activate through it instead. Select ☰ Menu, then Sign in, and sign in with your email and password or with a one-time passcode. Then select the apps and Activate & install.

Check it worked

1. Select ☰ Menu, then My subscriptions.
2. Check that the subscription is listed, with its expiry date.

The expiry date also appears in your Avast Account.

If something goes wrong

Avast says the activation code is not accepted. Compare the code with your email, hyphens included. Copy and paste it rather than typing. If it still fails, Avast advises to uninstall the product completely, install it again and enter the code once more.

You tried the Avast Account route and no subscription appears. Sign in to your Avast Account and check the subscriptions overview. If the subscription is missing there, it is not linked to this account. Use the activation code route instead.

Setup does not start, or Windows blocks it. Right-click the file and choose Run as administrator. Make sure the file came from avast.com and is complete. If the download stopped early, download it again.

You want to use Avast on another PC. Install it there and activate it. Your subscription covers the number of devices chosen at purchase. Avast also has a guide for moving a subscription to another device.

Still stuck? Contact our support and include your order number and the exact message you see.