Hello YumikoAwae,
I'm John an Independent Advisor and a Microsoft user like you. I'll be happy to assist you today. I understand you have a problem with calculator app name is in Japanese.
Can you try to find the Calculator app in the Start Menu then check if its name is in Japanese?
Kindly try the methods below if it helps.
**Please try to re-pin Calculator app on the task bar
Press Start then search Calculator
Right click then Pin to Taskbar
**Reset the Calculator app
Press Start then search Apps and Features
Search Calculator
Click advanced options
Select Reset
**Reinstall Calculator app via PowerShell.
Press Windows key+X then select Powershell(Admin)
Copy and paste the command to uninstall Calculator app
get-appxpackage *windowscalculator* | remove-appxpackage
After that, Proceed to reinstall Calculator app
Open Microsoft Store then search Windows Calculator
Click Install
or Install Calculator via Powershell
Press Windows key+X then select Powershell(Admin)
copy paste the following then hit Enter:
Get-AppXPackage *windowscalculator* -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Restart your PC
Kindly let me know if this helps or if you have any further concerns.
Sincerely
John DeV
Independent Advisor