Software & Apps Windows How to Fix It When the Windows 10 Calculator Is Not Working Find the reasons why the calculator isn't functioning properly By Tricia Goss Writer Tricia Goss has been a writer and editor for 10+ years. She's written tips and tutorials for Microsoft Office applications and other sites. our editorial process Facebook Twitter LinkedIn Tricia Goss Updated November 22, 2019 Windows The Ultimate Laptop Buying Guide Tweet Share Email When you want to perform some quick calculations but the Windows 10 calculator won't open, opens and then immediately closes, or crashes soon after you start using it, you could pull out your phone or rifle through your desk to find another calculator. But finding out why the Windows 10 calculator went missing and getting it to work again will save you from similar headaches in the future. Instructions in this article apply to Windows 10. Causes of Windows 10 Calculator Not Working Jonathan Knowles / The Image Bank / Getty Images Windows 10 calculator missing or crashing might be caused by a handful of issues. It could be the result of settings messed up by a recent update. System files that are corrupt or missing might make the calculator glitch. Even something as simple as using the wrong account to log in to the computer could be the culprit. How to Fix Windows 10 Calculator Missing Troubleshooting the most common causes of a non-working calculator by using some built-in tools, changing some settings, and perhaps reinstalling some files are your best bet to get it up and running again the way that it should. Start by trying to run the calculator as an administrator. If the settings for the calculator app are problematic, trying to open it this way could resolve the issue. If not, continue troubleshooting. Log in to the computer as a different user. If you only have one account set up in Windows, create an additional one and then try to use the calculator after logging in to the second account. Run the Microsoft Accounts Troubleshooter. Using this tool is especially helpful if the calculator worked in an alternate Windows 10 user account. If the original account settings are corrupt or other issues exist, the troubleshooter could identify and fix these problems. If the calculator is still missing, it is likely a different issue. Run the Apps Troubleshooter in Windows 10. The problem might not have anything to do with your user account and everything to do with the calculator app itself. Windows 10 includes multiple troubleshooting tools that are tucked away in the settings. Make sure you select the Windows Store Apps at the bottom of the Troubleshoot window to check for and fix any problems with the calculator (or other apps). If no problems are found, continue troubleshooting. Check for app updates. Although most updates will be installed automatically, there is a chance that there is a new update available that could fix your Windows 10 calculator. Reset or reinstall the calculator. A convenient Reset button exists in the Calculator section of the Window 10 Apps & Features settings. If resetting it doesn't do the trick, you can then uninstall the existing software and reinstall a fresh version of the calculator app. After reinstallation, the calculator should open. If not, it is time to dig deeper. Run a System File Checker scan. The tool will scan your computer to locate any corrupted or incorrect protected system files and replaces them with correct Microsoft versions. Reboot and try the calculator again before moving on. If the Windows 10 calculator still won't open, run the sfc /scannow command. This tool will inspect important Windows files and replace any it damaged or missing files it finds. After restarting the computer try to open the calculator. If it is still missing or crashing, try one more system tool. Use the DISM tool. Deployment Image Servicing and Management (DISM.exe) is a command-line tool that can find and repair any corruption inside the local image. Reboot your computer before continuing. Check for and install available Windows Updates. There might be a known issue with the calculator app for which a service pack or patch provides a solution. If no updates exist or this does not resolve the problem, you have another option. Perform a System Restore. This utility will transport your computer to a time and date (of your choosing) when the calculator was working fine. This process undoes the most recent major change to the system, which could have caused the calculator to stop working. You also have the opportunity to restore your system to any other restore points that have been created.