There is no directory when writing the MinGW gcc compiler.error

C:\Users\ob\AppData\Local\Temp\ccFJqNal.s
gcc.exe:error:CreateProcess:No such file or directory
This User/ob/ So far, it was created during installation with Win's Dir.After that, I tried to make Appdate~, but after all, I got an error without File and Dir.
If you look at Win, it's a user half-width character.
　I think this may be the cause, but what measures should I take?
Can you think of it? English characters Users

Would you like to use the mount command?Thank you for your cooperation.