Black screen "Sessions" error

The behavior described matches a system-level black/blank screen issue rather than an Edge-only problem. Use the following steps to narrow it down and stabilize Windows 11; once the OS is stable, Edge issues usually disappear as well.

1. Check if it is a black/blank screen issue

• When the screen goes black, press Ctrl + Alt + Del.
  • If the security options screen appears, this is a Windows shell/graphics issue, not a full crash.
• Press Windows logo key + Ctrl + Shift + B to reset the graphics driver. The screen should briefly flicker or a beep should be heard.
• Press Windows logo key + P, then tap P once and press Enter to cycle display modes in case Windows is sending output to the wrong display.

2. Basic black/blank screen troubleshooting If the system recovers or responds to the above shortcuts, follow the generic black screen guidance:

• Ensure the device is powered and any external monitor is firmly connected and powered on.
• If the screen is black but the cursor is visible, treat it as a stalled Windows process or driver issue and continue with the next steps.

3. Check for stop code / restart behavior If the black screen is followed by an automatic restart and a brief message like “Your device ran into a problem and needs to restart,” this is a stop code error (kernel/driver crash):

• After the next successful boot, check Settings → Windows Update and install all available updates.
• Remove any recently added hardware and test again.
• Start in Safe Mode and use Device Manager to update or temporarily disable any devices with a warning icon, especially display/graphics devices.
• Ensure there is at least 10–15% free disk space on the system drive.

4. If the black screen appears after sign-in If Windows signs in but then shows only a black screen with a cursor:

• Use Ctrl + Alt + Del → Task Manager and check whether explorer.exe is running; if not, run it from Task Manager (File → Run new task → explorer.exe).
• If the issue persists, use Event Viewer to look for Event ID 1000 crashes involving explorer.exe or userinit.exe around the time of the black screen. That indicates the shell is crashing and may require deeper troubleshooting as described in the scenario guide.

5. Stabilize Windows before focusing on Edge Because the entire system locks and sometimes needs multiple hard restarts, treat this as an OS/driver problem first:

• Boot into Safe Mode and verify the system is stable there.
• From Safe Mode, update display drivers via Device Manager.
• Install all pending Windows 11 updates.
• If frequent crashes continue with the same stop code, follow the basic troubleshooting steps for Windows 11 blue/black screens and stop code errors (remove new hardware, Safe Mode, Device Manager checks, disk space, Windows Update, then recovery options).

6. If Edge alone is affected after OS is stable If, after stabilizing Windows, only Edge misbehaves (crashes, fails to start, or shows black content while the rest of Windows is fine):

• Reinstall Edge using the official Edge installer over the existing installation (this preserves data but refreshes the browser binaries).

If none of the above resolves the black screen/lockup and it continues across multiple reboots, use Windows 11 recovery options (such as a repair install or Reset this PC while keeping files) as a last resort to repair core system components.

References:

• Troubleshooting black or blank screens in Windows
• Troubleshooting blank screens in Windows
• Troubleshooting Windows unexpected restarts and stop code errors
• Scenario guide: Black screen after you sign in to the system
• Microsoft Edge will not start. - Microsoft Q&A