my windows security screen is blank black

Question

recently i downloaded a game from ocean of games and disabled the windows defender, after that my windows security is blank black,

how to fix it?

Answer 1

Please try the following command in Windows PowerShell in the administrative mode:

Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

Answer 2

Cracked games are usually wrapped in malware, that is why Defender needs to be disabled when installing the game.

Click your Start Button, type regedit and hit Enter to open the Registry Editor.

Click View and make sure 'Address Bar' is turned on.

Paste this into the Address Bar at the top and hit Enter.

HKLM\SOFTWARE\Policies\Microsoft\Windows Defender

Please provide a screenshot of that Registry Editor page.

Answer 3

Follow these steps in order, as the issue likely comes from malware plus disabled protection:

1. Disconnect from the internet
   Unplug Ethernet and turn off Wi‑Fi to prevent further malicious activity while fixing the system.
2. Try to bring back the Windows Security app
   Sometimes the UI is just stuck on a blank/black screen:
   • Press Ctrl + Alt + Del and choose Task Manager.
   • If the screen is blank but the cursor works, follow the blank‑screen steps:
     • Press Windows + Ctrl + Shift + B to reset the graphics driver.
     • If that does not help, hold the power button for 10 seconds to force a shutdown, then power on again.
   • After restart, try opening Settings → Privacy & security → Windows Security and click Open Windows Security.
3. Run the Windows Security Troubleshooter (Windows 10 only)
   If this is Windows 10, use the official troubleshooter to automatically repair Windows security components:
   • Download and run the Windows Security Troubleshooter from the page in the reference below.
   • In the File Download dialog, choose Run or Open, then follow the steps.
     This tool checks and enables:
   • Windows Firewall
   • Antivirus protection status and updates
   • User Account Control (UAC)
   • Data Execution Prevention (DEP)
   • Phishing/SmartScreen filters
4. Boot into Safe Mode and scan for malware
   Because the problem started after downloading from an untrusted site and disabling Defender, assume possible infection:
   • Force shutdown by holding the power button for 10 seconds.
   • Turn the PC on and, as Windows starts, force‑shutdown again. Repeat 2–3 times until Recovery Mode appears.
   • Go to Troubleshoot → Advanced options → Startup Settings → Restart.
   • Press F5 for Safe Mode with Networking.
   • In Safe Mode, run a full scan with Windows Security if it opens; if not, use a reputable third‑party antivirus already installed to scan and remove threats.
5. Repair system components
   If Windows Security still shows a black screen, system files or services may be damaged:
   • In Safe Mode or normal mode (if usable), run System Restore to a point before the game/Defender changes:
     • Go to Troubleshoot → Advanced options → System Restore in Recovery Mode.
     • Choose a restore point from before the issue started and complete the restore.
6. If the screen is still blank/black overall
   If the entire Windows screen (not just the Security app) is black or blank:
   • Check cables/monitor (for desktop) and ensure the device is powered and charged.
   • Use Windows + P to cycle display modes in case output is going to another display.
   • If you see only a cursor on a blank screen, open Task Manager (Ctrl + Shift + Esc), find Windows Explorer, right‑click and select Restart. If missing, use File → Run new task → explorer.exe.
   • If this does not resolve it, follow the advanced blank‑screen steps: boot to Safe Mode, update or roll back graphics drivers, and if needed perform System Restore as described above.
7. If nothing works
   When Windows Security remains unusable and the system appears compromised or unstable even after scans and System Restore, the next step is a Reset this PC (keep files) or a full reinstall to ensure all malware and corruption are removed.

For any future downloads, avoid untrusted sites and keep Windows Security/Defender enabled at all times.

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References:

• Troubleshooting black or blank screens in Windows
• Troubleshooting blank screens in Windows
• Automatically fix Windows security issues