The call we take most often from a Liberton small office is not “OneDrive won’t sync”. It’s the opposite. OneDrive is showing a green tick, the little pop-up says Your files are up to date, and a laptop has just died or been stolen or had its SSD give up without warning. Then someone opens the OneDrive web portal on a phone and discovers that the folder they thought held three years of patient notes, quotes, scanned invoices or client files has roughly a dozen things in it, half of which are shortcuts from a long-forgotten setup. The sync status was never lying — it was just answering a different question.
This happens across the small practices near the Royal Infirmary, the dental and physio clinics along Lasswade Road, and the little consultancies tucked between Liberton Brae and Gilmerton. None of these businesses have in-house IT. They’ve been told OneDrive handles backups and they’ve stopped thinking about it. On the bench we see the same six root causes over and over, and every one of them produces a reassuring green tick while the actual files sit only on the local drive. Here’s how we audit it, what the six causes look like, and the five-minute check an office manager can run on each PC to catch it before the drive does.
What “Up to Date” Actually Means
The OneDrive client in the tray is reporting one narrow thing: for every file inside the folders it has been told to watch, the version on this PC matches the version in the cloud. That’s it. If a folder was never added to the watch list, or if the account signed itself out quietly last Tuesday, OneDrive has nothing to compare and nothing to complain about. “Up to date” in that case means “nothing to do”, which is technically true and operationally catastrophic.
The gap between what the user thinks is being backed up (everything on the Desktop and in Documents, plus the shared folder they drag quotes into) and what OneDrive is actually watching is where every one of these jobs lives. Our audit is really just a methodical check of that gap.
1. Known Folder Move Was Never Turned On
This is the single biggest cause we see. OneDrive for Business has a feature called Known Folder Move that redirects the local Desktop, Documents and Pictures folders into the OneDrive sync root, so anything saved to the Desktop (which is where most people in a small office save things, whatever the training said) ends up in the cloud without them thinking about it. On a managed Microsoft 365 tenant it’s usually enforced; on a small-business tenant that was set up by whoever happened to be around in 2020, it almost never is. Users save to C:\\Users\\<name>\\Desktop, the OneDrive folder sits empty at C:\\Users\\<name>\\OneDrive — Company Name, and the two never meet. OneDrive is cheerfully syncing an empty folder and ticking green. The fix is to turn on Known Folder Move from the OneDrive settings dialog, which moves the files up on the next sync. On the bench we usually find this one in under a minute.
2. The Account Signed Itself Out and Nobody Noticed
A conditional-access policy changed, a password was reset elsewhere, a device-code prompt popped up during a Teams call and got dismissed — OneDrive is now signed out. Microsoft 365 stays signed into Word and Outlook using cached tokens, so nothing visually breaks and nobody reports a problem. But the little cloud icon in the tray has a slash through it, and no new file written to the Desktop has gone anywhere for weeks. We find this one most often on reception PCs that get locked rather than restarted, so nobody sees the fresh sign-in prompt in the morning. The fix is to click the icon, finish the sign-in, and — crucially — sanity-check the file count in the web portal matches the local folder.
3. Files On-Demand Pretending Files Are There
This one causes a different kind of loss. Files On-Demand shows every cloud file as a placeholder with a cloud icon, so Explorer looks full even when the local drive has a copy of almost nothing. That’s fine — until someone turns on “Always keep on this device” for a huge folder, the drive fills, OneDrive silently rolls those files back to online-only to recover disk space, and then the office goes offline for an afternoon. Suddenly nothing opens. Worse, a brand-new file saved into a placeholder subfolder sometimes gets written locally without being queued for upload, because the parent folder’s status is “online-only”. We check this by looking at the cloud/tick/person-icon column in Explorer against the folder the user actually works in.
4. Paused During a Teams Call, Never Resumed
OneDrive auto-pauses sync during Teams meetings so the uplink doesn’t get hammered. That’s sensible. What’s less sensible is that on some builds it also pauses when the laptop drops below a battery threshold, when a metered network is detected (hotels, phone hotspots, some guest Wi-Fi), or when the user clicks “Pause for 2 hours” by accident from the tray menu. Resume is manual. We see laptops that have been paused for a fortnight because the user went to a conference in May and nobody noticed when they came back. On the bench we clear any active pause, then disable the battery and metered-network auto-pauses from Settings → Sync and Backup → Advanced Settings so the office PCs don’t do it to themselves.
5. The Path or Filename Is Blocking Sync
OneDrive still has restrictions on filename characters (no < > : " / \\ | ? *), on total path length (a soft limit around 400 characters), and on specific reserved names (CON, PRN, AUX, NUL, old DOS leftovers). It also won’t sync a filename beginning with a tilde (~), which Office uses for its lock files. One blocked file doesn’t stop everything — but it does show as an alert in the OneDrive tray that nobody ever clicks on, and in some edge cases a blocked folder stops its whole subtree from uploading. Clinics are the classic case: scanner software saves PDFs with the patient’s full name, the date and three types of punctuation, and one of them in a dozen contains a character OneDrive won’t accept. Fix is to open the tray icon, see the list of unsynced files, and rename or move them.
6. The Shared Folder Was Never Actually a OneDrive Folder
This one bites small businesses that have grown. There’s a “shared drive” everyone saves to. The owner remembers setting up OneDrive six years ago. In reality the drive is a mapped letter to an old Buffalo NAS in the back office, OneDrive is syncing a quite different folder that nobody opens, and the backup people believe exists has never existed. The fix here isn’t a OneDrive setting at all — it’s moving the shared workflow onto SharePoint document libraries or OneDrive shared folders properly, and keeping a separate backup of whatever stays on the NAS. We cover the NAS side of this problem in the Uphall mapped drive guide; the OneDrive migration is a separate conversation.
A Recent Job on the Lasswade Road Side
A three-person physio clinic between Liberton Brae and Lasswade Road brought us a desktop that had refused to boot after a storm knocked the power out mid-session. SSD was healthy, Windows was corrupted. Fine — our standard recovery and reinstall. Then the practice manager said, calmly, “It’s okay, everything’s on OneDrive.” We checked the web portal from a laptop. The OneDrive folder had the installer for a treatment-notes app and a 2021 insurance letter. Nothing else. Three years of client notes lived on the Desktop and in a folder called Clients on the C: drive, neither of which had ever been added to Known Folder Move. The owner’s laptop (also OneDrive) was in the same state. We recovered the data off the SSD on the bench, migrated the whole folder structure into a proper OneDrive library with Known Folder Move enforced on both machines, enabled Files On-Demand but pinned the active-year folder to local, and left them with a one-page sheet showing what “a correctly backed-up PC” looks like in the system tray. Total bench time was a morning. The point of the story isn’t the fix; it’s that the clinic had been convinced they were covered for three years. We see that conviction most weeks.
The Five-Minute Check an Office Manager Can Run
On each PC, in order: click the OneDrive cloud in the tray — if there’s no cloud, OneDrive isn’t running; if there’s a cloud with a slash, it’s signed out. Click the gear, then Settings → Sync and Backup. If “Backup important PC folders to OneDrive” is off, Desktop and Documents aren’t being touched. Open Explorer, go to the Desktop, and look at the status column on three or four files — green ticks mean on this device and in the cloud, cloud icons mean cloud-only, and anything with no icon isn’t being watched at all. Finally, log in to office.com on a phone, open OneDrive, and compare: does the file count and the folder structure match what you see in Explorer? If it doesn’t, OneDrive has been lying for the length of the gap.
When It’s Worth Getting Us Out
If the five-minute check turns up one PC with the status cloud and a quick sign-in sorts it, you’re not in trouble. If it turns up a pattern — most of the office is using the Desktop without Known Folder Move, or the shared workflow is on a mapped drive nobody’s backing up — the right move is a one-visit tidy before a drive dies. We cover Liberton, Gilmerton, the Royal Infirmary, Lasswade and the rest of south Edinburgh for business IT support and can either come out on a site visit or do most of the audit over remote support. If a drive has already died on you, the Liberton same-day computer repair page is the place to start — we triage the drive first and almost always get the files off before anything else happens. For the deeper “the backup clearly didn’t work and we need the data back” cases, our data recovery service handles the actual pull.
A few companion posts if the wider small-office backup story is what you’re actually wrestling with: our Uphall mapped drive piece covers the NAS side of the same “shared files not where you think” problem; the Loanhead office printer disconnect guide is the same category of “it looks fine in the tray” issue in a different corner of the office; and the PC backup guide is a plain-English rundown of what a proper backup looks like when OneDrive is only one piece of it.
Last updated: 3 October 2026