remote differential compression

Remote Differential Compression (RDC) is a Windows feature that can impact file transfer speeds over a network. In Windows 7, users have reported that disabling Remote Differential Compression can help resolve slow file copy issues, particularly when transferring files between different Windows versions or across network devices. The feature is designed to minimize data transfer by sending only the differences between files, but in some network configurations it may cause performance degradation. Troubleshooting steps often include turning off RDC in Windows Features, along with checking other settings like homegroup configuration and network adapter properties. While RDC can be useful in certain scenarios, disabling it is a common recommendation for improving transfer speeds in Windows 7 environments.