You need a shared file system for multiple Windows EC2 servers. You created an Amazon EFS file system, but the Windows instances cannot mount it. What action should you take so the Windows EC2 instances can share files?

Amazon EFS is a file storage service for Linux-based workloads, supporting NFSv4.0 and NFSv4.1 protocols. Windows EC2 instances do not natively support NFSv4 and therefore cannot mount an EFS file system directly. To provide a shared file system for Windows EC2 instances, Amazon FSx for Windows File Server is the appropriate service. It offers fully managed native Windows file systems accessible via the Server Message Block (SMB) protocol, which is standard for Windows environments. Incorrect options: Using IAM credentials is not relevant for mounting EFS from Windows, as the fundamental protocol is incompatible. Enabling NFSv4 support on Windows is not a practical or supported solution for EFS integration; FSx for Windows File Server is the intended service. While opening NFS ports is necessary for Linux clients, it won't resolve the protocol incompatibility for Windows instances.