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

On Windows, the quickest route is the Settings app: open Settings, go to Apps > Apps & Features, find the program you want to remove, click it, and select Uninstall. Windows will walk you through the removal process. On Mac, most programs can be deleted by dragging them from the Applications folder to the Trash, then emptying the Trash. Some Mac programs come with their own uninstaller — check the Applications folder for an Uninstall file.

Both methods remove the program from your computer, but they work differently. Windows programs often leave behind small files in system folders even after uninstalling, while Mac programs are usually self-contained and delete cleanly. If a program refuses to uninstall or you want to remove every trace of it, you may need a third-party tool or to dig into system folders — but for most everyday programs, the built-in methods work fine.

Key Takeaways

  • Windows users should open Settings, navigate to Apps > Apps & Features, select the program, and click Uninstall to remove most software.
  • Mac users can usually delete programs by dragging them from the Applications folder to Trash and then emptying the Trash.
  • Some programs leave behind configuration files and settings even after uninstalling, which is normal and usually harmless.
  • If a program will not uninstall through normal methods, restarting your computer or checking the program's website for an official uninstaller often solves the problem.
  • Third-party uninstaller tools can remove leftover files, but they are not necessary for most users and can cause problems if used incorrectly.

How to uninstall programs on Windows

Open the Settings app by pressing the Windows key and typing "Settings," then pressing Enter. Once Settings opens, click Apps on the left side, then click Apps & Features. Scroll through the list until you find the program you want to remove. Click on it once to select it, and an Uninstall button will appear. Click Uninstall.

A dialog box will pop up asking you to confirm the removal. Click Uninstall again. Some programs will show their own uninstaller window with options — follow the prompts and click Next or Finish until the program closes. Once the uninstaller finishes, the program is removed from your computer. You can verify this by checking the Apps & Features list again — the program should no longer appear.

If you cannot find a program in Apps & Features, it may be a portable program (one that runs without installing) or it may be hidden. Portable programs can usually be deleted by finding their folder and dragging it to the Recycle Bin. If a program still will not uninstall, restart your computer and try again — sometimes Windows locks files while a program is running.

How to uninstall programs on Mac

Open Finder and click Applications in the sidebar. Scroll through the list of programs until you find the one you want to remove. Click on it once to select it, then drag it to the Trash icon in the Dock (usually at the bottom right of your screen). Alternatively, right-click the program and select Move to Trash. The program is now in the Trash but not yet permanently deleted.

To permanently remove the program, right-click the Trash icon in the Dock and select Empty Trash. Once you empty the Trash, the program cannot be recovered. Before you do this, make sure you have selected the correct program — emptying the Trash removes everything in it, not just the program.

Some Mac programs come with their own uninstaller. If you see an Uninstall file in the Applications folder alongside the program, double-click it and follow the prompts. This method is safer for complex programs because the uninstaller knows exactly which files belong to that program and removes them all at once.

What happens to files and settings after you uninstall

When you uninstall a program, the main process files are removed, but some programs leave behind configuration files, preferences, and cached data. On Windows, these files are usually stored in hidden folders like AppData. On Mac, they are typically in the Library folder. These leftover files are usually very small and do not affect your computer's performance.

If you plan to reinstall the program later, these leftover files can be helpful — the program will remember your settings. If you want to completely remove all traces of a program, you can manually delete these folders, but you need to know where to look and be careful not to delete files belonging to other programs. For most users, leaving these files behind is not a problem.

When a program will not uninstall

If a program refuses to uninstall, the most common reason is that Windows or Mac is still using files from that program. Restart your computer and try uninstalling again. If that does not work, check the program's official website — some programs have their own uninstaller tool that you can read and run separately.

On Windows, you can also try uninstalling in Safe Mode, which starts your computer with only essential programs running. Press the Windows key, type "msconfig," press Enter, click the Boot tab, check the Safe Boot box, and click OK. Restart your computer, then try uninstalling the program. Once you are done, go back to msconfig and uncheck Safe Boot to return to normal mode.

If none of these steps work, the program may be corrupted or may have been installed by another program that is preventing its removal. In this case, you may need to contact the program's support team or consider using a third-party uninstaller tool — though these tools can sometimes cause problems if they remove files that other programs depend on.

Using third-party uninstaller tools

Third-party uninstaller programs like Revo Uninstaller (Windows) or AppCleaner (Mac) can remove programs and their leftover files more thoroughly than the built-in methods. These tools scan your computer for files and settings related to the program and delete them all at once. They can be useful if you want to completely erase a program, but they are not necessary for most users.

If you decide to use a third-party uninstaller, read it from a trusted source and read the reviews first. Some uninstaller tools are poorly made and can delete files that other programs need, which can cause your computer to malfunction. Always back up your important files before using an unfamiliar tool. For everyday program removal, the built-in Windows and Mac uninstallers are safer and work well enough.

How to free up space after uninstalling programs

Uninstalling programs frees up disk space, but the amount depends on the program's size. Large programs like video editors or games can take up several gigabytes, while small utilities may only use a few megabytes. To see how much space you freed up, check your available storage. On Windows, open Settings > System > Storage. On Mac, click the Apple menu, select About This Mac, and click Storage.

If you want to free up more space, you can empty the Recycle Bin (Windows) or empty the Trash (Mac) to permanently delete the uninstalled programs. You can also delete the leftover configuration files manually if you know where they are, though this is optional. Clearing your browser cache and deleting old downloads can also free up space without affecting your programs.

Frequently Asked Questions

Will uninstalling a program slow down my computer?

No. Uninstalling a program removes it from your hard drive and memory, which can actually speed up your computer slightly by freeing up storage space. Programs that are installed but not running do not slow down your computer. Only programs that are actively running in the background consume memory and processing power.

Can I uninstall Windows built-in programs like Notepad or Calculator?

On Windows 10 and 11, you can uninstall most built-in apps through Settings > Apps > Apps & Features. However, some core programs like Windows Defender and File Explorer cannot be uninstalled because Windows depends on them. If you uninstall a built-in program and later want it back, you can reinstall it from the Microsoft Store.

What if I accidentally deleted a program I need?

If you moved the program to Trash or Recycle Bin but have not emptied it yet, you can restore it. On Windows, open the Recycle Bin, right-click the program, and select Restore. On Mac, open the Trash, right-click the program, and select Put Back. If you have already emptied the Trash or Recycle Bin, you will need to reinstall the program from its original installer or read it again.

Do I need to restart my computer after uninstalling a program?

Most of the time, no. However, some programs — especially system utilities and drivers — may require a restart to fully remove themselves. Windows will usually prompt you to restart if it is necessary. If you are unsure, restarting does not hurt and ensures the uninstall is complete.

Why does my computer still show a program after I uninstalled it?

This usually means the uninstall did not complete successfully. Restart your computer and check again — sometimes the list does not update until you restart. If the program still appears, try uninstalling it again. If it continues to appear, the program may be corrupted or protected by another program, and you may need to use Safe Mode or contact the program's support team.