Sign in to Central and select Install Bitdefender Products
This keeps the installer tied to the correct account and subscription.
BITDEFENDER CENTRAL GUIDE
Download the installer from your own Central account, confirm the subscription and follow the operating-system prompts for Windows, macOS, Android or iOS.

This keeps the installer tied to the correct account and subscription.
For a different device, use the send-link option shown in Central instead of copying an old installer.
Windows or macOS may ask for administrator approval before files can be installed.
Keep the device online while current program files and security updates are downloaded.
The protected device should then appear under My Devices in the same Central account.
FAQ
Answers based on the linked official documentation.
No. Software downloads should come from Central or an official app store.
No. Once the subscription is active, installations are managed through Central.
The installer may download current components and security updates before completing.
OFFICIAL REFERENCES