The launcher does not launch and it is impossible to play Minecraft Windows

Hello, since I migrated my Java account to Microsoft, I could no longer launch Minecraft Windows (but Java edition worked) because it apparently was not the right launcher and it gave me the error "file system error (-2015294512)".

So I uninstalled and reinstalled the launcher, but now I cannot launch the launcher, again because of the file error (-2015294512).

Thank you for your help.