If you need to perform some quick calculations but the Windows 10 Calculator won’t open, opens and then immediately closes, or crashes shortly after you start using it, you may want to grab your phone or rummage around your desk to find another calculator. However, figuring out why Windows 10 Calculator has disappeared and getting it working again can save you similar headaches in the future.

Windows 10 Calculator missing or crashing can be caused by a handful of issues. It could be the result of settings that were messed up by a recent update. Corrupt or missing system files can cause Calculator to crash. Even something as simple as using the wrong account to log into your computer could be the culprit.

The most common causes of a non-working calculator are best solved by using built-in tools, changing some settings, and possibly reinstalling some files. This will get your calculator working optimally again.

Run the calculator as an administrator. If the settings for the calculator app are problematic, opening the app this way may fix the problem. If not, continue troubleshooting.