At Digital Tech Explorer, led by our very own TechTalesLeo, we’re always eager to uncover early access to groundbreaking tech. Microsoft’s “Full screen experience” mode, designed for handheld gaming PCs, is still under wraps officially, but eager tech enthusiasts can get an early peek. While not officially available, users running a Preview version of Windows, combined with a specific third-party tool, can activate it now. However, our initial testing suggests it’s still in its nascent stages and may not offer a flawless experience for everyone.
Enabling Microsoft’s Dedicated Handheld UI
Detailed instructions for setting up this new mode on a Windows handheld are widely available, for instance, on Reddit. The prerequisite involves becoming a Windows Insider and updating to version 25H2. Should the option not appear automatically in your system settings, a well-known third-party utility, ViVeTool, can be leveraged to enable the feature. Tech enthusiasts might recall using this tool previously for early access to Copilot features.
If you encounter hurdles joining the Windows Insider program directly on your device, an alternative, more involved method is to download a Windows 11 25H2 ISO file and perform a fresh installation via a USB drive. Post-installation and subsequent updates, if Microsoft’s dedicated handheld UI option remains elusive, ViVeTool, alongside a new registry key, can be employed for activation. A final reboot should then make the mode accessible through the Gaming section of Windows Settings, ready for exploration.
Initial Hands-On Experience and Expectations
When the ROG Xbox Ally made its debut at Gamescom, Microsoft’s vision for a “Full screen experience” was touted as a significant selling point for handheld gaming. While neither Asus nor Microsoft explicitly stated exclusivity, it was widely anticipated to launch with that device. The initial demonstration promised an intuitive, handheld-first user interface with seamless transitions between the gaming mode and the standard Windows desktop, drawing clear parallels to the user-friendly experience offered by SteamOS.
Current Malfunctions on Legion Go S
During our real-world testing at Digital Tech Explorer, specifically after successfully setting up the feature on a Lenovo Legion Go S handheld gaming PC, this early Xbox Full screen experience proved to be unstable. We observed completely unresponsive controls, making it impossible to switch between the Desktop and the full-screen gaming modes. These issues strongly suggest that specific firmware updates may be necessary, or there could be a compatibility challenge unique to the Legion Go S hardware at this preliminary stage.
As other platforms like SteamOS expand their availability across a wider range of handhelds, it’s certainly encouraging to witness Microsoft actively developing a competitive solution. The overarching question remains for developers and tech enthusiasts alike: once the Xbox Full screen experience is fully optimized and stable, will it deliver the performance and efficiency gains needed to truly compete, or will the advantage continue to lie with Linux-based operating systems such as SteamOS and Bazzite? TechTalesLeo will continue to monitor developments closely here at Digital Tech Explorer.
Disclaimer: All content on Digital Tech Explorer is for informational and entertainment purposes only. We do not provide financial or legal advice. Some of the links on Digital Tech Explorer are affiliate links. This means we may earn a commission if you click through and make a purchase, at no additional cost to you. Our recommendations are based on thorough research and personal experience.

