Step 1: Download the Installer
Go to the official Parallels download page:
https://download.parallels.com/desktop/v20/20.4.0-55980/ParallelsDesktop-20.4.0-55980.dmg
Or visit parallels.com and download Parallels Desktop 20
Open the downloaded .dmg file and follow the on-screen instructions to install
Step 2: Launch Parallels Desktop
Open Parallels Desktop from your Applications folder
When prompted, choose whether you are a new user or have an existing Parallels account:
New user: Select "I am a new user" → click Create Account → enter your email, name, and password
Existing account: Select "I have a password" → enter your email and password → click Sign In
Step 3: Enter Your Activation Key
After signing in, you will be prompted to enter your Product Activation Key
Copy the key from the email you received after purchase and paste it into the corresponding field
Click Activate