The fastest way to remove a program depends on your operating system

On Windows, open Settings, go to Apps > Apps & Features, find the program you want to remove, click it, and select Uninstall. On Mac, open Applications in Finder, right-click the program, and select Move to Trash, then empty the Trash. Both methods remove the program files and free up disk space. The Windows method is more thorough because it runs the program's uninstaller, which removes related files scattered across your system. The Mac method works for most programs but occasionally leaves behind small preference files.

If you cannot find the program in these standard locations, it may have been installed in a non-standard folder, or it may be a built-in system program that cannot be removed the usual way. The steps below cover the most common scenarios for both operating systems.

Key Takeaways

  • Windows users should use Settings > Apps > Apps & Features to uninstall, because it runs the program's own uninstaller and removes all related files.
  • Mac users can drag programs from the Applications folder to Trash, though some programs may leave behind preference files that take up minimal space.
  • Some programs leave behind folders or files after uninstall, which you can manually delete if you want to reclaim all disk space.
  • Built-in system programs on Windows and Mac usually cannot be removed, but you can hide or disable them instead.
  • Restarting your computer after uninstalling a program ensures all files are fully released and prevents reinstall errors.

Uninstalling on Windows using Settings

Open the Start menu and type "Settings" into the search box, then click Settings to open it. In the Settings window, click Apps on the left sidebar. Click Apps & Features to see a list of all installed programs. Scroll through the list to find the program you want to remove. Click the program name once to select it, then click the Uninstall button that appears. A confirmation window will pop up asking if you want to remove the program — click Uninstall again to confirm.

Windows will now run the program's uninstaller, which removes the main program files and any related files the program created during installation. This process usually takes 30 seconds to 2 minutes depending on the program size. Do not close the Settings window or restart your computer until the uninstall is complete. Once finished, the program will no longer appear in your Apps & Features list and will no longer show up in your Start menu.

Uninstalling on Mac using the Applications folder

Open Finder and click Applications in the sidebar, or press Command + Shift + A. You will see a folder containing all your installed programs. Find the program you want to remove, right-click it, and select Move to Trash. The program will disappear from the Applications folder. To permanently delete it, click the Trash icon in your Dock, then click Empty to remove it completely.

Some Mac programs come with their own uninstaller. If you see an Uninstall icon or Uninstaller file inside the program's folder, double-click that instead of moving the program to Trash. This runs the program's own removal process, which may clean up additional files. After uninstalling, restart your Mac to may support all program processes stop running and free up memory.

Removing leftover files after uninstalling

After you uninstall a program, small preference files or configuration folders may remain on your computer. On Windows, these are usually hidden in the AppData folder. On Mac, they are typically in the Library folder. These leftover files take up very little space — usually less than 1 MB — and do not affect your computer's performance, so most people leave them alone.

If you want to remove them completely, you can manually delete them. On Windows, open File Explorer, click View at the top, check the box for Hidden Items, then navigate to C:\Users\[Your Username]\AppData\Roaming and look for a folder with the program's name. Right-click it and select Delete. On Mac, open Finder, press Command + Shift + Period to show hidden files, navigate to Users > [Your Username] > Library > process Support, find the program's folder, and drag it to Trash. Be careful to delete only the folder for the program you uninstalled, not other system folders.

What to do if the program will not uninstall

If you click Uninstall and nothing happens, or you get an error message, the program may be running in the background. On Windows, press Ctrl + Shift + Esc to open Task Manager, look for the program name in the list, click it, and click End Task. Then try uninstalling again. On Mac, open Activity Monitor (search for it in Spotlight), find the program, click it, and click the X button to force quit it. Then try moving it to Trash again.

If the program still will not uninstall, restart your computer and try again when ready after startup, before the program has a chance to run. If you still get an error, the program may require administrator permission to uninstall. On Windows, right-click the uninstall button and select Run as Administrator. On Mac, you may need to enter your password when prompted. If none of these steps work, the program may be corrupted, and you can try downloading a fresh copy from the publisher's website and running their uninstaller instead.

Built-in programs you cannot remove

Windows and Mac both include programs that are part of the operating system and cannot be uninstalled through the normal method. On Windows, these include Notepad, Calculator, and Windows Defender. On Mac, these include Safari, Mail, and Finder. If you try to uninstall one of these, the Uninstall button will be grayed out or will not appear.

If you do not use a built-in program, you can hide it instead. On Windows, right-click the program in your Start menu and select Uninstall, then select "I want to uninstall this app" — this will hide it from your Start menu without removing it from your system. On Mac, you cannot hide built-in programs, but you can remove them from your Dock by right-clicking and selecting Remove from Dock. If you change your mind later, you can always find them again in Applications or by searching in Spotlight.

Restarting after uninstall to avoid problems

After you uninstall a program, restart your computer before you install a new program or try to reinstall the same one. When you uninstall, Windows and Mac mark files for deletion but do not always release them when ready while the system is running. Restarting ensures all files are fully removed and all memory is freed up. This prevents error messages like "installation failed" or "file already in use" if you try to reinstall the same program right away.

Restarting also clears any remaining processes the program was running in the background, which can sometimes interfere with other programs. The restart usually takes 2 to 5 minutes. You do not need to restart if you are straightforward uninstalling a program and not installing anything new, but it is good practice and helps keep your system running smoothly.

Frequently Asked Questions

Will uninstalling a program delete my files?

No. Uninstalling removes only the program itself and its system files. Your documents, photos, and other personal files remain on your computer. If the program created a folder for your files (like a game saves folder), that folder may remain after uninstall, but your files inside it will not be deleted.

Can I uninstall Windows or Mac itself?

No. You cannot uninstall your operating system through the normal uninstall method. If you want to remove Windows or Mac completely, you would need to reinstall a different operating system, which requires technical knowledge and special tools. For most users, this is not necessary.

What if I uninstall a program by mistake?

You can reinstall it by downloading it again from the publisher's website or from the Microsoft Store (Windows) or App Store (Mac). Your settings and files created by the program may not return unless you have a backup, but the program itself can be reinstalled without any permanent damage.

Does uninstalling free up disk space?

Yes. Uninstalling removes the program files from your hard drive, which frees up the space they were using. Large programs like video editors or games can free up several gigabytes. You can check how much space a program is using before you uninstall by right-clicking it in Apps & Features (Windows) or checking its size in the Applications folder (Mac).

Why does my computer run slow after uninstalling a program?

Uninstalling should not slow down your computer. If your computer feels slow after uninstall, it is likely a coincidence. Restart your computer, which often improves performance. If slowness continues, it may be caused by something else, like a virus or too many programs running at startup, not by the uninstall itself.