OpenAFS Client Installation Guide for Windows

The AFS service is being decomissioned on November 13, 2018. Please go to for more information.


The AFS service is being deprecated, if you need to access your files in AFS and you do not already have the OpenAFS client installed on your computer, please use SFTP to retrieve the files. If you only need to download the contents of your AFS home directory, go to Please go to for more information.


This document walks you through the process of installing the OpenAFS Client for Windows 64-bit on a campus computer running Windows 7, Windows 8 or Windows 10. It also includes configuration information for connecting to the ITS AFS file space ( AFS is only supported on computers physically attached to the campus network or connected through Virtual Private Networking (VPN). Please see VPN Installation and Clients document for more information about VPN.

Historically, only the OpenAFS client itself was required. Windows clients now require a combination of 3 applications that interact to provide access to AFS. They are the OpenAFS client, the Network Identity Manager application and a Heimdal application. A kerberos configuration file is also required. ITS has created a self extracting executable that unifies the installation into a single package.

Note that on March 30, 2016, clients must utilize this new package. Previous installations using only the OpenAFS client will no longer be able to access the ITS AFS cell
Windows 32-bit users, please use SFTP to connect to your AFS space.  Please visit the document for installation/connection instructions.

It is recommended that you read these instructions completely before installing OpenAFS.

Downloading the OpenAFS client

The OpenAFS client for Windows 64-bit is available to download from

Installing and Configuring the OpenAFS client for UNC.

  • The installation instructions are based on OpenAFS Version 1.7.x for Win 7 (64-bit).
  • Win 8 and Win 10 installs will be a similar process but may look a little different then the Win 7 (64-bit) install.
Open your “Downloads” folder and Right-click the downloaded file “AFS.exe” and select “Run as administrator”.
Critical! If you do not select the “Run as administrator” option, the installation will not work correctly.
A new command window (example below) will open and then close automatically once the installation is complete.

Critical! Once the command window closes, please restart the computer for the installation to complete.

Obtaining Tokens and Mapping the drive for OpenAFS Client

When your computer finishes rebooting, log back in with the same username you used to install the software. By default, AFS will be running when you log in.

Open the application “Network Identity Manager” from the Start Menu


Right-Click the entry for “onyen@ISIS.UNC.EDU” and select “Obtain new credentials” from the drop down menu.


Enter your password and click “Finish”


If there is no entry for “onyen@ISIS.UNC.EDU” then do the following extra steps.

Select Options – Identities from the drop-down menu


A new window called Network Identity Manager Configuration will open. Click the button “Add new identity…”


In the new window, enter your Onyen on the Username field. Select “ISIS.UNC.EDU” from the dropdown for the Realm field. Click finish and then OK for the previous window.


Select Credential – New credentials – Obtain new credentials for myOnyen@ISIS.UNC.EDU


Enter your password in the field provided then click Finish


Next you will need to map the AFS drive.

Click the WindowsStart Menu, chooseComputer, and then clickMap network drive from the menu bar.

Select a Drive letter from the drop down menu and enter the path of the directory you wish to access. The default path for your personal H drive is in the form of afsisis.unc.eduhomeononyen; replace the ‘o’ with the first character of your Onyen, replace the ‘n’ with the second letter of your Onyen, then replace ‘onyen’ with your full Onyen.

Your AFS drives are now ready to use. If you navigate to Computer or Windows Explorer, you will see your mapped drives.

If you have further questions or encounter problems, please contact the ITS Service desk at 919-962-HELP (962-4357) or 1-866-962-4457 (US and Puerto Rico), or submit a help request at for assistance.