The only illegal characters when naming files, directories, groups, etc. are as follows: / : ? " | and the less than or greater than symbols. The only limitation I'm aware of in the use of underscores is in DNS naming conventions, as the underscore is an illegal character for anything other than SRV records.
Dig deeper on Windows File Management
Related Q&A from Laura E. Hunter
Active Directory expert Laura E. Hunter offers some advice for changing the IP addresses of domain controllers.continue reading
An admin needs to grant user access rights for those needing to traverse directory trees. Our server management expert explains how to use Group ...continue reading
A Windows administrator moving from Windows Server 2003 to Windows Server 2003 R2 wants to perform a restore of a previous server to a new one ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.