Window Assassin
A downloadable tool for Windows
Window Assassin is a tiny Windows tray utility for instantly terminating the process behind the active window.
Press Ctrl+Alt+End while the unwanted or frozen window is focused. Window Assassin calls the Windows TerminateProcess API, so it can close apps that ignore normal requests.
Features
• Global Ctrl+Alt+End hotkey
• Forcefully terminates the foreground window's process
• Runs elevated for stubborn or elevated apps
• Optional Start with Windows installer component
• Lightweight tray-only interface
• Installer and portable ZIP
Warning
Forced termination does not allow the target application to save. Unsaved work will be lost.
Windows 10/11.
Made by Valentine Panchin aka b2kdaman.
Download
Install instructions
Installer: run WindowAssassin-Setup.exe and choose whether to start with Windows. Portable: extract the ZIP and launch WindowAssassin.exe. Accept the administrator prompt, focus the target window, and press Ctrl+Alt+End.

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