The Cross-Device Communication Hub
As Microsoft pushed toward a unified ecosystem spanning PCs, Xbox consoles, and mobile devices, they introduced deep cross-device communication protocols into Windows 10. The operating system includes a master privacy setting called “Let apps access my other devices.” When this toggle is enabled, applications downloaded from the Microsoft Store can actively scan your local Wi-Fi or Bluetooth network to discover, connect to, and exchange data with other authorized hardware tied to your Microsoft account or present on your subnet.
This feature is the backbone of experiences like “Continue on PC” (where you send a webpage from your phone to your desktop) or allowing a companion app on your tablet to control a game running on your Xbox. However, if you use your Windows 10 computer strictly as a standalone workstation and do not utilize Microsoft’s cross-device synergy features, leaving this setting enabled represents an unnecessary privacy exposure. You don’t want a third-party app silently pinging your smart TV or attempting to handshake with your mobile phone in the background. If you prefer your PC to operate in isolation, you should disable this OS-level permission.
How to Revoke Cross-Device Access
You can instantly prevent all Store applications from attempting to communicate with external hardware via the Privacy settings.
- Click the Start button and select the Settings gear icon (or press
Win + I). - Click on the Privacy category.
- Look at the left-hand sidebar, scroll down to the “App permissions” section, and click on Other devices.
- In the right-hand pane, locate the master toggle switch situated immediately underneath the text Let apps access my other devices.
- Click the toggle switch to turn it Off.
Once disabled, Windows establishes a strict boundary, preventing any installed application from discovering or communicating with un-paired hardware on your network or tied to your Microsoft account.