Work Folders is another feature debuting in Windows 8.1. Basically it's a company-hosted version of a cloud storage service like SkyDrive or DropBox. It adds native syncing of user files on their PCs and mobile devices to their storage on the corporate network. This provides a backup of their files in case of loss/theft and lets them access files via other devices. This syncing can be done with or without the devices being connected to the domain or via Workplace Join. And IT admins have the ability to remotely wipe these synced files, for instance if an employee loses the device or leaves the company.