There are certain limitations for file name and folder name. The following characters are not supported.



Backslash 
/
Slash        

Colon
*
Asterisk
?
Question Mark
"
Quotation Mark
<
Less than sign
>
Greater than sign
 |
Vertical bar



With the limitation of Microsoft Windows,  those characters are not allowed when create, save, or rename a file, folder, or shortcut.


In macOS the characters are supported. However when such a file or folder being stored and shared via CacheDrive to Windows users, the file may not be processed / displayed correctly. 


Avoid using those characters in file/folder name in the cross-platform environment with multiple client operating system.