You should have permission by default to create a new folder, but let's make sure. It's not included anymore on Windows 10, but you can download it from MajorGeeks. Microsoft File and Folder Troubleshooter can find and fix common problems with file and folder operations, including Windows Explorer and File Explorer in Windows 7, 8, and 10. If you are trying to create a new folder in Windows and can't, here are some possible solutions.ġ: Download Microsoft File and Folder Troubleshooter