The WebClient service is a client prerequisite for connecting to a WebDav server. The service comes pre-installed if you are using desktop versions of Microsoft Windows. However, you need to install it as part of the Desktop Experience feature when using Windows Server 2008 and 2012.
Installing the WebClient service on Windows Server 2008 and 2012
Start the Windows Server Manager.
In the tree view, click on the Features node.
In the details pane, click Add Features.
In the Add Features Wizard, check the Desktop Experience box, and then click Next.
Click Install.
When the Add Features Wizard has finished, click Close.
Restart the computer.
