1. In Windows 7:
2. Click Start, go to Control Panel and double-click Programs and Features.
3. Find Bitdefender and select Uninstall.
4. Click Remove in the window that appears, and then select according to your situation: I want to reinstall it or I want to permanently remove it.
5. Click Next to continue.
For more information: Bitdefender customer support number | Bitdefender technical support number