What is OneDrive?

OneDrive is your personal cloud storage in Microsoft 365 — your work files, drafts, and works-in-progress. Yours alone, accessible from anywhere, synced across all your devices.

Reading time: 4 minutes Last updated: June 2026 Card code: F-05

What it is

OneDrive is the personal cloud storage that comes with your Microsoft 365 account. Think of it as your own filing cabinet that lives in the cloud — accessible from any device, synced across all of them, and yours alone unless you choose to share.

Most work accounts come with 1TB of OneDrive storage. That’s enough for tens of thousands of documents. Your files are encrypted, backed up by Microsoft, and accessible via the browser at onedrive.com, the OneDrive sync app on your desktop, or the OneDrive mobile app.

OneDrive is for your work, not your team’s work. The moment more than one person needs to see or edit a file, it should be in SharePoint instead. This is the most common mistake in Microsoft 365 — people save everything to OneDrive ‘just in case’ and then no-one can find anything when they’re on leave or change roles.

In 2026, OneDrive also includes Copilot integration. Open any file in OneDrive and Copilot can summarise it, extract information, or help you draft new content based on it.

Why it matters

OneDrive is the safety net that makes ‘I lost my work’ impossible. Every save creates a version. Every device has the latest copy. Every file is recoverable.

  • But OneDrive is also the place where institutional knowledge goes to die. Files saved in someone’s OneDrive disappear with that person when they leave.
  • The ‘OneDrive or SharePoint?’ decision is foundational. Get it right and your team scales. Get it wrong and you spend years trying to recover from ‘where did Sarah save the thing?’

The OneDrive rule

If only you will ever need this file — OneDrive. The moment a second person needs access, even just to read — SharePoint. The cost of guessing wrong is high; the cost of moving the file later is low. Default to SharePoint when uncertain.

When to use this

  • When the file is genuinely personal — your draft notes, your private working documents, your career stuff.
  • When the file is a work-in-progress that no-one else needs to see yet.
  • When you’re collecting research, drafts, or fragments before moving them to a shared location.
  • Almost never for finalised documents anyone else might want.

How to do it

  1. Open OneDrive in the browser (onedrive.com), via the OneDrive sync icon in your taskbar/menu bar, or through the OneDrive mobile app.
  2. Upload files by drag-and-drop in the browser or by saving directly from any Office app (the default save location for personal work is OneDrive).
  3. Organise with folders, but don’t go too deep. Three levels of folders is usually enough.
  4. Sync to your desktop: install the OneDrive sync client. Your OneDrive folder appears in File Explorer/Finder like any other folder.
  5. Share a file: right-click, choose Share, then choose who can access. Default to ‘Specific people’ for sensitive content.
  6. Recover a deleted file: open the OneDrive Recycle Bin (browser only). Recoverable for 30 days from your bin, plus 60 more days from the second-stage admin bin.

Best practices

  • Use OneDrive for personal work only. Use SharePoint for team work.
  • Sync your OneDrive folder to your desktop. The sync client makes OneDrive feel like a local folder — but with cloud backup.
  • Use Files On-Demand (a OneDrive setting) so files only download when you open them. Saves disk space.
  • Don’t save your entire team’s content to OneDrive ‘just for safety.’ That’s not safety; that’s a single point of failure.

Common mistakes

  • Saving everything to OneDrive because it feels ‘private and safe.’ It’s also unfindable to anyone but you.
  • Forgetting that when you leave a role, your OneDrive can be wiped 30 days later. Don’t store team-critical content there.
  • Sharing OneDrive files with everyone and expecting it to behave like a team site. Use SharePoint for team work.
  • Not knowing the difference between your personal Microsoft account OneDrive (for Xbox, Outlook.com) and your work account OneDrive. They’re different storage.
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FAQ

What is OneDrive used for?

OneDrive is for your personal work files — drafts, works-in-progress, anything only you (and people you explicitly share with) need access to. It’s not team storage; that’s SharePoint. The rule of thumb: if a colleague might ever need this file, save it to SharePoint instead. OneDrive files can disappear when employees leave.

How much storage do I get in OneDrive?

Most Microsoft 365 work and school plans include 1TB of OneDrive storage. Some enterprise plans include 5TB or unlimited. That’s enough for tens of thousands of documents. If you’re approaching the limit, you’re almost certainly using OneDrive for content that should be in SharePoint instead.

What’s the difference between OneDrive and OneDrive for Business?

OneDrive (consumer) is your personal Microsoft account storage for Xbox, Outlook.com, and personal use. OneDrive for Business is the work or school account storage included with Microsoft 365 plans. They’re separate, with different storage limits and security models. Make sure you’re saving to the right one — work files should go to OneDrive for Business.

Can other people see my OneDrive files?

By default, only you can see files in your OneDrive. You explicitly share files with others when you choose. The exception: your organisation’s admin can technically access your work OneDrive in certain scenarios (legal hold, account deactivation, security audits). Personal OneDrive (consumer) is fully private to your Microsoft account.

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