The foundation of the Windows file system

1. The length of the file path is limited to 260 characters, and these 260 characters include the volume label, path, main file name and extension, and delimiter. In a Windows NT system, characters use Unicode wide characters. Both English and Chinese occupy two bytes.

2. Special characters cannot appear anywhere in the file name. There are 9 special characters, respectively: "/", "∣" "\", "*", "?", "<", ">", "" "," ":".

3. A device name that is reserved under DOS cannot be used as a file name or as a master file name. They are: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9. LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8 and LPT9.

The foundation of the Windows file system