How to Kill a Process by PID in Windows 11 Command Line
Ending a process by its PID (process ID) is precise, targeting exactly one instance rather than every process with a given name. This is useful when several copies of a program are running and you only want to close a specific one identified by its unique ID.
The Command
taskkill /PID 1234 /F
What It Does
Here `/PID` specifies the numeric process ID, and `/F` forces that process to close. Every running process has a unique PID, so this ends precisely the one numbered 1234. You would replace 1234 with the actual PID of the YYGACOR process you want to stop, which you can find using Task Manager or a command that lists processes with their IDs.
When You’d Use This
This is the precise option when several copies of a program run and you want to end just one, identified by its unique ID. It avoids closing every instance the way targeting by name would, which matters when you need to stop one specific misbehaving process while leaving its siblings running, such as a single stuck browser tab process.
Useful Variations
To find a process’s PID first, run `tasklist` in Command Prompt, which lists all processes with their IDs, or `Get-Process` in PowerShell. To end several specific processes, repeat `/PID` for each, such as `taskkill /PID 1234 /PID 5678 /F`. Omit `/F` to request a graceful close instead of forcing it.
If It Doesn’t Work
If it cannot find the PID, the process may have already ended or you have the wrong number, since PIDs change each time a program starts, so look up the current one first with `tasklist` or `Get-Process`. For processes owned by the system, run as administrator. Include `/F` to force closure if a graceful request does not work on an unresponsive process.
Good to Know
Because PIDs are assigned fresh each time a process starts, the same program will have a different PID after a restart, so always check the current PID before ending it. Forcing closure discards unsaved work, so this suits unresponsive processes or deliberate script control.
Putting It Together
Once you have run it once or twice, this becomes second nature. As part of understanding and controlling what runs on your PC, this command is one you will return to whenever the system feels slow or a program misbehaves. Paired with the related process commands, it gives you a full command-line alternative to Task Manager for diagnosing and managing what is running. Like anything in the terminal, the real value comes from trying it on your own system and adapting the variations above to what you actually need, so it is worth experimenting with in a safe, low-stakes situation before relying on it in a script or during troubleshooting. Keeping a note of the commands you find most useful, along with the variations that fit your workflow, turns scattered one-off tricks into a personal reference you can draw on whenever a similar task comes up again.