FIX: Calculator doesn’t work in Windows 10

Ivan Jenic
by Ivan Jenic
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  • Calculator is the default calculator app on Windows operating system.
  • To fix the problems with Calculator, you just need to reinstall it, or update Windows to the latest version.
  • We covered Calculator updates and issues in the past, so if you're having any other problems with it, be sure to check our Calculator hub for more information.
  • If you’re having additional Windows 10 issues, we advise that you check out our Windows 10 errors hub for more helpful articles.
windows calculator doesn't work

Just like the previous versions of Windows, Windows 10 comes with some of the default apps such as text editor, calendar and Calculator. Speaking of which, some users are having certain issues and report that Windows 10 Calculator won’t work.

We have all used Windows Calculator, it’s a simple application that allows us to perform a quick calculation, so it’s unusual to see that the Calculator application isn’t working for some users.

If you’re having problems with Calculator on Windows 10 here are few solutions that might help you.

What do I do if Calculator doesn’t work in Windows 10?

There are many problems with Calculator that can occur on Windows 10, and in this article we’ll show you how to fix the following issues:

  • Windows 10 Calculator doesn’t run, start, launch – Many users reported that the Calculator app won’t start at all on their Windows 10 PC. According to them, the application is completely unresponsive.
  • Calculator won’t open in Windows 10 – This is another variation of this problem, and many users reported that their Calculator app is unable to open. This can be an annoying problem, but you should be able to fix it with one of our solutions.
  • Windows 10 Calculator opens then closes – Few users reported that Calculator on their PC opens and then instantly closes. This is a standard problem, and you might be able to solve it by fixing corrupted files.
  • Windows 10 Calculator not working administrator – In some cases, the Calculator app might not work even if you’re using an administrator account. To fix this problem, you need to reinstall the application.
  • Windows 10 Calculator crash, closes – Many users reported that their calculator frequently crashes or closes. This can be an annoying problem, but you can fix it by using one of our solutions.

Did you know that Windows Calculator can convert currency?


1. Re-register Windows 10 apps using PowerShell

  1. In the Search Bar type PowerShell and right click PowerShell app from the list of results.
  2. From the menu choose Run as administrator.
    run as administrator powershell calculator doesn't work
  3. When the PowerShell starts, paste the following line and press Enter to run it:
    • Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppXManifest.xml”} powershell Calculator won't open in Windows 10
  4. This will re-register all Windows 10 apps on your computer. Wait for the process to finish and then try running Calculator again.

2. Create a new user account

  1. In the Search bar type add user and choose Add, edit, or remove other users from the list of results. You could also do that by going to the Settings > Accounts >Family & other users.
    add user calculator doesn't work windows 10
  2. In the Family & other users section click the Add someone else to this PC.
    add someone else to this pc Windows 10 Calculator not working administrator
  3. Click on I don’t have this person’s sign-in information.
    I don't have this person's sign-in information Windows 10 Calculator crash
  4. Now click on Add a user without a Microsoft account.
    add a user without a Microsoft account Windows 10 Calculator doesn't start
  5. Now you need to enter username and password for local account.
    user information calculator doesn't work
  6. After you’ve created a new account switch to it.

If everything works, you can delete your old account, but remember to copy your personal files and documents to your new account. This might be a bit drastic solution, but it should help you if the Calculator doesn’t work on Windows 10.


3. Perform an SFC scan

  1. Press Windows Key + X to open Win + X menu. Now choose Command Prompt (Admin) from the list of results. If Command Prompt isn’t available, you can use PowerShell (Admin) instead.
    command prompt calculator app doesn't work
  2. When Command Prompt opens, enter sfc /scannow and press Enter.
  3. SFC scan will now start. The scanning process can take up to 15 minutes, so don’t interrupt it.

Once the scan is completed, check if the issue is resolved. If SFC can’t fix the problem or if you’re unable to run SFC scan, you need to use DISM instead.

  1. To do that, start Command Prompt as administrator.
  2. Now paste DISM /Online /Cleanup-Image /RestoreHealth command and run it.
  3. Wait while Windows performs the DISM scan.

The scan process can take up to 10-20 minutes, so don’t interrupt it.

Once the DISM scan is finished, the issue should be resolved. If you were unable to run an SFC scan before, run it after running DISM scan and check if that solves your problem.


Scan and repair corrupted system files like an expert with SFC! Just follow our guide!


4. Install the missing updates

  1. Press Windows Key + I to open the Settings app.
  2. When the Settings app opens, navigate to the Update & security section.
    update and security Windows 10 Calculator not working administrator
  3. Click on Check for updates button. Windows will now check for available updates. If updates are available, they will be downloaded automatically in the background.
    check for updates Windows 10 Calculator closes

Installing the latest updates can fix bugs and glitches that can cause Calculator to stop working.


5. Reinstall Calculator app

  1. Download CCleaner.
  2. Use CCleaner to remove it.
  3. Visit Windows Store and download it again.

Once the Calculator app is reinstalled, the issue should be resolved. If you were unable to fix this problem using CCleaner, be sure to check our article on how to reinstall Windows Store apps for more solutions.

Another option after uninstalling is to use a third-party calculator. Such a tool won’t be affected by any Windows updates or malfunctions. We recommend you Calculator from Robot Soft.

Besides basic operations, it solves a wide range of equations, finds functions value and is easy to use.


6. Download Windows app troubleshooter

  1.  Download Windows apps troubleshooter.
  2. After downloading the tool, run it and let it scan your PC.
  3. If the troubleshooter finds any issues with your apps, it will automatically fix them.

If Calculator doesn’t work in Windows 10, using the Windows app troubleshooter is one of the simplest and fastest ways to fix it.


7. Turn off your firewall

  1. Press Windows Key + S and enter firewall. Select Windows Firewall from the list of results.
    windows defender firewall windows calculator doesn't work
  2. Click on Turn Windows Firewall on or off in the menu on the left.
    turn off windows firewall Calculator won't open in Windows 10
  3. Now select Turn off Windows Firewall (not recommended) for both Private and Public network settings. Click on OK to save changes.
    Turn off windows firewall calculator doesn't work Windows 10

After disabling your firewall, check if the issue still appears. If not, you might want to enable your firewall and create a security exception for the Calculator app and check if that solves the problem. In case you use a third-party firewall, as a part of antivirus software, try disabling it instead.


Alternatively, you can install a third-party firewall to protect your PC!


8. Enable User Account Control

  1. Press Windows Key + S and enter user account control. Select Change User Account Control settings.
    change User account control settings Windows 10 calculator doesn't work
  2. Move the slider to the default position and click on OK to save changes.
    user account control slider calculator doesn't work windows 10

Few users reported that Calculator doesn’t work if User Account Control is disabled, so by enabling it you should be able to fix the problem.


We’ve written a nice piece about managing User Account Control, do check it out.


9. Reset Calculator app

  1. Open the Settings app.
  2. Go to the Apps section.
    apps section Windows 10 Calculator doesn't run
  3. List of all applications will now appear. Select Calculator and click on Advanced options.
    advanced options Calculator won't open in Windows 10
  4. Now click on the Reset button. Now click on Reset again in the confirmation window.
    reset button Windows 10 Calculator opens then closes

After doing that, the problem should be resolved and you’ll be able to use Calculator without any issues.


10. End RuntimeBroker.exe process

Sometimes background processes can cause issues with the Calculator app. If Calculator doesn’t work on your Windows 10 PC, the cause might be RuntimeBroker.exe process.

To fix the issue, you need to end this process by doing the following:

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. When Task Manager starts, locate Runtime Broker, right click it and choose End task from the menu.
    end task runtime broker Windows 10 Calculator not working administrator

After ending the Runtime Broker process, check if the issue is resolved. Keep in mind that this is just a workaround, so you might have to repeat this solution if the issue reappears.

That would be all, I hope this article helped you with calculator problems in Windows 10. If you have any comments, or questions, just reach for the comment section below.

FAQ: Learn more about Calculator

  • How do I enable the calculator in Windows 10?

To open the calculator, just press Windows Key + R and type calc. Now press Enter to start the calculator.

  • How do I install Windows Calculator on Windows 10?

If you’ve removed Windows Calculator, you can install it by opening Windows Store and searching for Windows Calculator. Just select Windows Calculator and click the Get button to install it.

  • How do I pin a calculator to my desktop Windows 10?

To pin the Calculator, you need to open the Calculator app and right-click its icon in the Taskbar. Now choose Pin to Taskbar option to pin it.

  • How do I reinstall my calculator on Windows 10?

To reinstall Calculator on Windows 10, open PowerShell as administrator and run the Get-AppxPackage -allusers *windowscalculator* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppXManifest.xml”} command.


Editor’s Note: This post was originally published in December 2015 and has been since revamped and updated in March 2020 for freshness, accuracy, and comprehensiveness.


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