Before disconnecting from the network (or clicking Work Offline on the Windows Explorer toolbar), you should always synchronize any folders or files you intend to use offline. Windows will not do this for you, and if a file is not up to date when you try to use it offline, Windows will deny you access. You can perform this synchronization in a variety of ways. The simplest is to right-click any folders containing files you want to work with, choose Sync from the shortcut menu, and then choose Sync Selected Offline Files. Alternatively, you can open Sync Center in Control Panel, select View Sync Partnerships, right-click Offline Files, and then choose Sync Offline Files. (On a portable computer, you can get to Sync Center by pressing Windows logo key+X to open the Windows Mobility Center; click the green icon to open Sync Center, or click the Sync button to sync all.)

There are several ways to get to your cached files while you're working offline. If you create a shortcut to any network folders you intend to use offline, you can open the cached folder offline by clicking its shortcut. If you map the network share to a drive letter, your offline files will be accessible via that drive letter. Alternatively, you can open Sync Center, click View Sync Partnerships, click Offline Files, click the share you want to use, and then click Browse on the toolbar: