Many users have experienced the perplexing reality of USB-C ports functioning in unexpected ways. One port may charge a laptop, another might connect to a monitor, while a third appears to serve no purpose at all. Despite their identical appearance, the behavior of these connectors can be anything but predictable. In a decisive move for clarity, Microsoft has taken steps to address this issue, announcing an update to its certification program for Windows 11 that aims to standardize USB-C functionality across new laptops and tablets.
What changes does Microsoft promise?
Microsoft’s recent announcement regarding the Windows Hardware Compatibility Program (WHCP) for Windows 11 devices introduces a new standard for USB-C ports. Under the updated guidelines, all certified devices must ensure that their USB-C ports support three essential functions: data transfer, charging, and video output. This means that users can expect any USB-C port on their new devices to “just work.”
Furthermore, laptops equipped with 40 Gbps USB ports will be required to support both USB4 and Thunderbolt 3, enhancing their versatility. These new requirements are already in effect for devices shipping with the Windows 11 24H2 update. Additionally, Microsoft mandates the use of certified chips from USB-IF and will implement its own USB controller driver, ensuring that all updates are delivered seamlessly through Windows Update.
What was the problem?
Ugan S, Senior Product Manager at Microsoft, highlighted a common frustration: connecting a monitor via USB-C only to find that nothing appears on the screen. He attributed this confusion not to the connectors themselves but to the inconsistent implementation of USB-C functionality by various manufacturers. This inconsistency has led to scenarios where one port is designated for charging, another for data transfer, and a third seemingly serves no purpose.
With the updates set to take effect in 2025, such discrepancies should become a thing of the past. The enhancements aim to provide users with greater clarity and confidence when using USB-C ports. Consumers purchasing new laptops or tablets with WHCP certification and Windows 11 24H2 can expect that any USB-C port will reliably support charging, data transfer, and display connectivity. Gone will be the days of guessing which port serves which function. In essence, by 2025, USB-C on Windows devices is poised to fulfill its intended role: universal, predictable, and user-friendly.
This transformation is made possible by advancements in Microsoft’s testing tools, including the Hardware Lab Kit (HLK). The WHCP program is designed to evolve with each new Windows release, ensuring ongoing improvements and a more cohesive user experience.
