If you google around you can find quite a few posts talking about this 'simple' solution, but I find none of them gets into deepth, especially on prerequisites. So I write this post and hope it can provide meaningful information for users who need map SharePoint with local file drives. And I will give a short overview and the advantages and comments about this implementation. Prerequisites You need to make sure the the "WebClient" service is up and runing on your server. If this service is disabled or missing on your server, you will have an error saying "The folder you entered does not appear to be valie. Please choose another" To check if "WebClient" service is in your services list, just open services and see. If it is missing, please follow the steps to make it available: Start the Windows Server Manager . In the tree view, highlight the Features node. In the details pane, click Add Features . In the Add Features Wizard ,...