A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi Marcia L!
If the region settings are changed each time you restart Windows; Try to do this: Troubleshoot the Windows: Run the compatibility troubleshooter: Click on Start Windows> Type Troubleshooter settings and Click it> Click on Other troubleshooters> Select Windows Updates and Run troubleshooter Restart the PC
If the issue persists, I suggest you direct the question to the Windows Operating system community forum where there are dedicated experts that will help resolve the issue of Windows 10: https://answers.microsoft.com/windows/forum? Go to the site and click on Windows> Select Ask question and post your question to the Windows Community.
Kind Regards, Shakiru