How do I force close a program on Windows?

My computer has a program that isn’t responding, and it’s making everything else slow. I’ve tried clicking the close button but nothing happens. What’s the best way to force quit an app in Windows when it completely freezes? Any help would be appreciated.

Task Manager is your best friend here. Hit Ctrl + Shift + Esc to bring it up directly (or Ctrl + Alt + Del, then choose Task Manager from the options if the first combo doesn’t work). If Task Manager opens in a compact mode, hit “More details” at the bottom. Scroll down the list of processes until you find the program that’s being stubborn, right-click it, and select “End Task.” Usually that’ll nuke the program (sometimes with a satisfying little animation). If the whole system’s still being slow and unresponsive, sometimes even Task Manager gets stuck—then you’ve got bigger fish to fry and might have to do the “hold down the power button and pray you didn’t lose everything” routine. But Task Manager is 95% reliable for this kinda thing—definitely beats clicking the X button 30 times and hoping it’ll eventually get with the program.

Alright, so Task Manager like @jeff said is the go-to, but honestly, sometimes even that gets slower than dial-up in Antarctica. Let me throw out an alternative: the ol’ Command Prompt nuke. Hit Start, type “cmd,” right-click it, and pick Run as administrator (needed for stubborn stuff). Then type tasklist to see all running processes. Find the name of your offending program—like “chrome.exe” or “notepad.exe”—then use:
taskkill /f /im whatever.exe
(Change “whatever.exe” to your troublemaker.) That’s “force-terminate” and yes, it’s as powerful as it sounds. Just make sure you aren’t axing something critical like “explorer.exe” unless you want your desktop to vanish (awkward).

In rare cases where even that doesn’t snap it out of its misery, and everything you click spirals into a freeze-fest, there’s not much to do but hit the reset button and hope your project saved on autosave. There’s also third-party task managers like Process Explorer if you wanna get all advanced, but honestly, most people don’t need the nuclear option unless they like living on the edge.

Gotta admit, Windows can get a bit melodramatic with its freezes. Sometimes it’s not even just the one app but the system throwing a fit over a bad driver or some update. Still, hard closing’s your best bet when all else fails, but try that taskkill from the command line next time—sometimes it’ll snuff out a process even when Task Manager’s just sitting there, blinking in confusion, not sure what to do next.