Banco do Brasil needed to standardize the employee experience across a very large and distributed workforce—more than 86,000 employees working in thousands of branches and offices. Before the migration, different operating systems were in use, which:

• Created inconsistent user experiences
• Limited collaboration to mostly web-based tools in some locations
• Complicated device management, security, and provisioning

The pandemic accelerated remote work and drove up Microsoft Teams usage, but when employees started returning to the office, it became clear they needed a consistent, hybrid-ready work environment that worked the same at home, in branches, and at headquarters. By moving thousands of devices to Windows 11 Enterprise and standardizing on tools like Microsoft 365 E5 and Microsoft Teams, Banco do Brasil set out to:

• Unify the digital workplace across all locations
• Improve collaboration and communication
• Strengthen security with modern, built-in protections
• Simplify management and provisioning at scale

They implemented this consistent experience across the organization in about four months, from headquarters to thousands of branches nationwide.

The migration to Windows 11 Enterprise and the broader Microsoft 365 environment helped Banco do Brasil reimagine how employees collaborate day to day. One of the clearest indicators is the change in Microsoft Teams usage:

• The bank saw a 117% increase in daily message exchanges in Microsoft Teams after the migration.

This growth suggests that employees are:

• Communicating more frequently and effectively
• Using Teams as a central hub for collaboration
• Benefiting from a more consistent and reliable experience across devices and locations

By standardizing on Windows 11 Enterprise and Microsoft 365 E5, Banco do Brasil ensured that all employees—whether in branches, offices, or home offices—have access to the same set of modern collaboration tools. This consistency removed many of the previous barriers caused by different operating systems and limited web-only access. In short, the new platform didn’t just modernize devices; it helped reshape everyday communication patterns across the organization.

Banco do Brasil used the move to Windows 11 Enterprise as an opportunity to strengthen security and simplify device management across tens of thousands of endpoints, including more than 30,000 branch devices. Key security enhancements include:

• Disk encryption with native Windows capabilities and BitLocker to protect data at rest.
• Microsoft Defender for Endpoint for real-time protection, reduced attack surface, and conditional access based on device health.
• Microsoft Entra for advanced identity and access management, including Multi-Factor Authentication (MFA) and Conditional Access, helping protect data even if a device is lost or stolen.
• Windows Hello for Business with facial and fingerprint biometrics, enabling passwordless authentication and single sign-on between the operating system and web applications.

These changes led to:

• Fewer support tickets related to authentication, thanks to simpler biometric logins.
• A more secure environment than traditional password-based access.

On the management side, Banco do Brasil adopted:

• Microsoft Intune and Windows Autopilot for centralized, flexible device deployment and lifecycle management.
• Cloud-based management via the integration of Microsoft Entra and Intune, shifting the security focus toward identity and enabling native cloud management of new devices.

This combination allowed the bank to rethink how devices are provisioned, secured, and supported—from large urban branches to remote locations with limited local infrastructure—and laid the foundation for next steps in AI, automation, and Microsoft 365 Copilot adoption.