How to delete applications on your PC
Deleting programs from your computer works differently on Windows and Mac, but both methods take less than a minute per program. On Windows, you use the Settings app or Control Panel to uninstall. On Mac, you drag the program to the Trash or use the Applications folder. The key difference is that Windows programs often leave behind files in multiple locations, while Mac programs are usually self-contained in a single folder.
Removing programs you no longer use frees up storage space, speeds up your system startup, and reduces clutter in your process menus. Some programs also run background processes even when you are not using them, so uninstalling stops them from consuming memory and processor power.
Key Takeaways
- On Windows 10 or 11, open Settings, go to Apps, then Apps & Features, find the program, and click Uninstall.
- On Mac, drag the program from the Applications folder to the Trash, then empty the Trash to complete removal.
- Some Windows programs leave behind files in your user folder or Program Files directory even after uninstalling, which you can delete manually if needed.
- Restarting your computer after uninstalling a program ensures all processes stop and files are fully released.
- If a program will not uninstall, check whether it requires administrator permission or whether another program is using it.
Uninstalling programs on Windows 10 and 11
The fastest way to remove a program on Windows is through the Settings app. Click the Windows Start button, type "Settings," and open it. Then select Apps from the left menu, and click Apps & Features. Scroll through the list until you find the program you want to remove, click it once to highlight it, and then click the Uninstall button that appears.
Windows will either open an uninstaller window specific to that program, or it will remove the program automatically. If an uninstaller window opens, follow the prompts — most programs ask you to confirm the removal and may offer options like keeping your settings or removing all files. Click through to completion, and the program is gone from your computer.
If you prefer the older Control Panel method, click the Start button, type "Control Panel," and open it. Select Programs, then Programs and Features. Find your program in the list, click it, and click Uninstall at the top. The process is identical to the Settings method, just a different interface.
Removing programs on Mac
Most Mac programs are single files that live in the Applications folder. To remove one, open Finder, click Applications in the sidebar, find the program you want to delete, and drag it to the Trash in your dock. Then click the Finder menu, select Empty Trash, and the program is completely removed.
Some Mac programs come with their own uninstaller. If you open the Applications folder and see an Uninstall [Program Name] file, double-click it and follow the prompts instead of dragging to Trash. This ensures any associated files are removed cleanly.
If a program will not drag to Trash, it may be running in the background. Press Command+Space to open Spotlight search, type the program name, and press Command+Q to quit it. Then try dragging it to Trash again.
What happens to files left behind after uninstalling
On Windows, uninstalling a program does not always remove every file it created. Many programs store settings, caches, and user data in your user folder under AppData or in a program-specific folder. These leftover files take up storage space but do not affect your computer's performance once the program itself is gone.
To find and delete these files manually on Windows, open File Explorer and navigate to C:\Users\[Your Username]\AppData. You will see three folders: Local, LocalLow, and Roaming. Look for a folder with the program's name and delete it. Be careful to delete only folders related to the program you uninstalled, as deleting the wrong folder can break other programs.
On Mac, leftover files are rare because programs are usually self-contained. If you want to be thorough, you can search for the program name in Finder after dragging it to Trash — any remaining files will appear, and you can delete them manually. Most users do not need to do this.
Restarting your computer after uninstalling
Some programs, especially Windows software, ask you to restart your computer after uninstalling. This is not always required, but it ensures that all processes related to the program have stopped and that all files are fully released from memory. If you do not restart and the program had background processes running, those processes may continue using resources until you do restart.
If you uninstall a program and then when ready try to reinstall it, you may get an error saying the program is still in use. Restarting your computer fixes this problem. It is a good habit to restart after uninstalling any major program, especially antivirus software or system utilities.
When a program will not uninstall
If you click Uninstall and nothing happens, the program may require administrator permission. Right-click the program name in the Apps & Features list and select Uninstall as administrator. On Mac, if a program will not move to Trash, try restarting your computer first — sometimes a program is locked because it is still running in the background.
Another common problem is that another program is using files from the program you are trying to delete. Close all open programs and try again. If you still cannot uninstall, restart your computer and try when ready after startup, before other programs have loaded.
On Windows, if uninstalling fails repeatedly, you can try using a third-party uninstaller tool like Revo Uninstaller or CCleaner, which can force removal and clean up leftover files. These tools are optional — most programs uninstall without problems — but they help when the standard method fails.
Freeing up storage space by removing large programs
If your computer is running low on storage space, uninstalling large programs is one of the fastest ways to free up gigabytes. Games, video editing software, and design programs often take 5 to 50 gigabytes or more. To see which programs are using the most space on Windows, go to Settings, select System, then Storage, and click on Apps & Features. Windows shows the size of each installed program, sorted by largest first.
On Mac, you can see program sizes by opening the Applications folder in Finder, clicking the View menu, selecting List View, and then clicking the Size column header to sort by size. Removing even two or three large programs you no longer use can free up 20 to 100 gigabytes of space, which noticeably improves your computer's performance if your drive was nearly full.
Frequently Asked Questions
Does uninstalling a program delete my files that I created with it?
No. Uninstalling removes the program itself but leaves your documents, photos, and other files alone. If you created a document in Microsoft Word and then uninstall Word, the document stays on your computer — you just cannot open it with Word anymore. You can open it with another program or reinstall Word later.
Can I uninstall Windows built-in programs like Notepad or Calculator?
On Windows 11, you can uninstall most built-in apps through Settings, but some system programs cannot be removed. If you do not see an Uninstall button, the program is required for Windows to function. On Windows 10, built-in apps can usually be uninstalled from the Apps & Features list.
What is the difference between uninstalling and deleting a program?
Uninstalling uses the program's official removal tool, which cleans up files in multiple locations. Deleting just removes the main program folder. Always uninstall through Settings or Control Panel rather than dragging the program folder to Trash, because uninstalling removes associated files that deleting would leave behind.
Will uninstalling a program speed up my computer?
Yes, if the program was running background processes. Antivirus software, cloud storage programs, and system utilities often consume memory and processor power even when you are not actively using them. Uninstalling these programs stops them from running in the background and frees up resources for other tasks.
Can I reinstall a program after uninstalling it?
Yes. You can reinstall any program by downloading it again from the publisher's website or from the Microsoft Store or Mac App Store. Your settings and files will not be there unless you backed them up, but the program itself installs fresh and works normally.