I fixed this problem, not without additional problems. But I managed to fix those new problems too. My Windows disply language was English-US, so I think that Windows must have thought that my settings are for the USA, hence the Fahrenheit. I added English-CA (which also added English-UK for some reason) and selected English-CA as Windows display language. This fixed my Fahrenheit problem but created three other problems:1-added English-UK, which I dismissed immediatly by removing it. 2-this simple language change triggered the latest Windows update from december 13 2022 to look missing to Windows, so that I had to re-install this update, not in an easy way, because it seemed not to install ; after a few tries it finally seamed to have installed. 3-after the language change, four of the Windows applications from Windows Store (Mail, Maps, Calendar and Clock) stopped displaying their icons and names on the pinned panel from Start menu. They have shown URI like strings, something like //ms-app/......... (unfortunately I don't remember the exact content of these strings). They opened the apps, just didn't display the appropriate icons and labels. I tried to repair these four apps, but nothing changed. From the start menu panel I could pin them to the taskbar and there they showed normal icons and opened the apps. I tried to uninstall them from start menu panel but they did not uninstall. I managed to uninstall them from Settings -> Apps. Than I re-installed them from Windows Store and everithing came back to normal. Well, with a little problem:I had to re-create e-mails accounts in Mail, which causes me another problem:Can not retrieve all e-mails from Yahoo.