If you already have a McAfee subscription, you can reinstall your antivirus on a new computer using your existing account and product key. Simply sign in to your McAfee account, download the software again, and complete installation through mcafee.com/activate.
How to Reinstall McAfee on a New Computer
Step 1: Open the McAfee Activation Page
Visit mcafee.com/activate using your browser.
Step 2: Sign In to Your McAfee Account
Log in with the same email address linked to your existing McAfee subscription.
Step 3: Enter Your Product Key
Type your 25-digit McAfee activation code if required.
Step 4: Download McAfee Antivirus
Select your McAfee product and download the latest version on your new computer.
Step 5: Install the Software
Open the setup file and follow the on-screen instructions to complete installation.
Step 6: Finish Setup and Run a Scan
After installation, open McAfee and run a quick scan to confirm your protection is active.
If McAfee Was Already Activated Earlier
If your subscription was previously activated, you usually do not need to buy another plan. Simply sign in with the same McAfee account and reinstall the software on your new device.
Common Reinstallation Problems
Unable to Sign In
Reset your password
Use the original purchase email
Download Not Starting
Clear browser cache
Try another browser
Installation Failed
Remove old antivirus software
Restart your computer before reinstalling