Knowledge Base
Invalid characters in Windows File or folder names
In Windows, certain characters have an intrinsic meaning when used in file names. Examples of this are the asterisk (*) for placeholders and the backslash (\) as a directory separator.
If the name of a file or folder to be synchronized contains any of the characters listed below, the file or folder will have to be renamed automatically to remove these characters. The list of invalid characters:
~ ” # % & * : < > ? / \ { | }. Spaces at the end of a foldername