Split Screen (often referred to as Multi-Window or App Pairs) is an Android system feature that allows the display to be divided, running two separate applications simultaneously in the foreground. While beneficial for personal multitasking, allowing Multi-Window capabilities is a severe operational security (OPSEC) liability in strict enterprise environments, kiosk deployments, or on devices utilized for secure, proctored examinations. If a user can force the OS into Split Screen mode, they can bypass single-app lock (if improperly configured), simultaneously run a secure corporate application alongside an unauthorized screen-recording or note-taking tool, or disrupt the highly specific UI layout required for point-of-sale (POS) software.
This guide explains how to completely disable ‘Split Screen’ (Multi-Window) system-wide on Android using Mobile Device Management (MDM), ensuring the operating system cryptographically prevents the WindowManager from rendering multiple foreground activities.
Disable Split Screen via Mobile Device Management (MDM)
Because Multi-Window is a core function of the Android ActivityManager and WindowManager, standard user settings cannot permanently remove the feature from the “Recent Apps” overview. To enforce a strict, irreversible block at the OS framework level, an administrator must utilize the Android Enterprise Management API.
- Access the administrative console of your organization’s MDM platform (e.g., Microsoft Intune, VMware Workspace ONE, or Google Workspace Endpoint Management).
- Navigate to the section for Android Configuration Profiles or Device Policies.
- Create a new policy (or edit an existing one) targeting Android Enterprise (Fully Managed or Dedicated devices).
- Locate the Device Restrictions, App Management, or System Settings section.
- Find the policy control specifically labeled Multi-Window, Split Screen, or Allow users to use multi-window mode.
- Set this policy to Block or Disable. (By explicitly disabling this, you instruct the Android framework’s DevicePolicyManager to assert a permanent, system-level lock on the `DISALLOW_MULTI_WINDOW` user restriction flag, forcing the OS to reject all requests to resize or dock activities).
- Assign the profile to the relevant device groups and initiate a push synchronization.
Verify the Configuration Lockdown
Once the MDM policy syncs with the Android device, the restriction is applied directly to the WindowManager.
To verify the lockdown is active, unlock the provisioned Android device and open an application. Swipe up and hold (or press the square navigation button) to access the Recent Apps overview. Tap the icon at the top of an app’s preview card. On a standard device, a “Split screen” or “Open in split screen view” option appears. On the locked-down device, this option will be completely missing. Furthermore, attempting to use ADB commands or third-party shortcut apps to force a split-screen intent will result in a SecurityException or simply fail silently. The Android device is now operating under a strict, single-focus foreground configuration.