OneDrive Known Folder Move: protecting the Desktop and Documents folders

The problem it solves

Ask a typical office where staff save their work and the official answer is the shared drive or SharePoint. The honest answer is the desktop, the Downloads folder and Documents. Those folders live only on the laptop unless something copies them elsewhere. When the laptop is stolen from a car, dies from a spilled coffee or is hit by ransomware, everything in them goes with it.

Known Folder Move turns those folders into OneDrive folders. The files still appear in exactly the same place, so nobody has to change their habits, but every change is now synced to the person's OneDrive. A replacement laptop signs in, OneDrive connects, and the desktop reappears with the files on it.

What changes for staff, and what does not

For most people, nothing visible changes apart from small cloud and tick icons on their files. They keep saving to the desktop. The Documents folder in File Explorer now sits under OneDrive, and its contents are available from the web and the OneDrive phone app as well. Because version history applies, an overwritten file on the desktop can now be rolled back.

Two things are worth explaining. First, deleting a file from the desktop now deletes it from OneDrive too, although it goes to the recycle bin and can be recovered for a time. Second, if two laptops sign in as the same person, both share one desktop, which can be confusing for people who keep a separate desktop at home and at work.

Before you switch it on

Check how much data is in those folders across the office. Some people keep tens of gigabytes of photos or old downloads on their desktop, and a full upload from every laptop on the same morning can saturate an office internet connection. Look for files that should not be in OneDrive at all, such as Outlook data files, virtual machines or the local data folder of a line-of-business app.

Also check for existing redirection. Some older networks redirected Documents to a file server through group policy. Known Folder Move needs those folders to be local first, so the old redirection has to be removed in a controlled way. If you skip that step the move fails on those machines, or worse, files end up split across two places.

Rolling it out

On a small number of laptops you can turn it on per person from OneDrive settings under the backup or manage folders option. For a whole office it is better done centrally through Intune or group policy, which can prompt people to move their folders or move them silently, and can stop people from moving them back. Central policy also means new laptops get the setting automatically.

Roll it out to two or three willing people first, check that their files upload cleanly and their applications still find their files, then extend to everyone over a week or two. Keep an eye on the OneDrive admin reports or the sync health dashboard, which show which devices have the folders protected and which have errors to chase.

Applications that write to Documents

Some programs store settings, templates or databases in the Documents folder. Most cope fine with it being synced, but a few do not, particularly older accounting packages, some CAD tools and anything that keeps a database open for long periods. Signs of trouble include slow program start-up, sync conflicts on the same files every day or applications complaining about locked files.

The usual fix is to tell the application to store that data elsewhere, in a local folder outside OneDrive, or to exclude specific file types from sync through policy. Test the key applications your business relies on during the pilot rather than discovering the problem when the whole office is affected on a Monday morning.

It is protection, not a full backup

Known Folder Move protects files against a lost or broken laptop, and version history gives some protection against accidental overwrites and ransomware encryption. It is not an independent backup. If someone deletes a folder and nobody notices until after the recycle bin has been emptied, or if the account itself is compromised and files are deliberately deleted, OneDrive alone may not be enough.

Pair it with a Microsoft 365 backup that copies OneDrive to separate storage, and you have both convenience and a proper safety net. With both in place, replacing a lost laptop becomes a matter of handing over a new machine, signing in and waiting for the files to appear, rather than an afternoon of explaining what has gone.