OneDrive is Microsoft's cloud storage service built into Windows

OneDrive is a folder on your computer that automatically saves copies of your files to Microsoft's servers on the internet. When you save a document, photo, or spreadsheet to OneDrive, Windows uploads it in the background so you can reach it from any device — your phone, tablet, or another computer — without carrying a USB drive or sending files by email.

It comes pre-installed on Windows 10 and Windows 11. You'll see a OneDrive folder in File Explorer that looks like any other folder, but anything you put inside it syncs to the cloud. If your computer crashes or you lose it, your files are still safe on Microsoft's servers. If you edit a file on your phone, the changes appear on your computer within seconds.

OneDrive is free up to 5 GB of storage. If you need more space, you can pay for a subscription, or you may already have more storage included with a Microsoft 365 subscription (formerly Office 365) if you use Word, Excel, or Outlook.

Key Takeaways

  • OneDrive automatically backs up files you save to it, protecting them if your computer fails or is lost.
  • You can reach OneDrive files from any device with internet access — phone, tablet, or another computer — without manually transferring them.
  • The OneDrive folder in File Explorer works like any other folder; you save files to it the same way you save to your Desktop or Documents.
  • OneDrive comes with 5 GB of free storage, and more space is available through paid plans or Microsoft 365 subscriptions.
  • You control which folders sync to your computer and which stay only in the cloud, so you don't have to store everything locally.

Where OneDrive appears on your computer

When you first turn on a Windows computer or sign in with a Microsoft account, OneDrive installs automatically. You'll see a OneDrive icon in the taskbar at the bottom right of your screen (on Windows 11) or bottom right (on Windows 10). Click it to open the OneDrive folder, which also appears in File Explorer alongside your Documents, Downloads, and Desktop folders.

The OneDrive folder sits at C:\Users\[Your Username]\OneDrive on your hard drive. You can save files there the same way you'd save to any other folder — right-click, choose "Save," and navigate to OneDrive. Once you save a file there, a small cloud icon appears next to it in File Explorer, showing that it's syncing.

If you don't see OneDrive on your computer, you may not be signed in with a Microsoft account. Check Settings (press Windows key + I), go to Accounts, and make sure you're signed in. If you're using a work or school account, your organization may have disabled OneDrive, or it may be set up differently.

How files sync between your devices

When you save a file to OneDrive on your computer, Windows uploads it to Microsoft's servers. The upload happens in the background while you work — you don't have to do anything. A small icon next to the file shows its status: a blue circle with a checkmark means the file is fully synced, a circular arrow means it's uploading, and a red X means there's a problem.

Once the file is on Microsoft's servers, you can open it on your phone, tablet, or another computer by going to OneDrive.com or opening the OneDrive app. If you edit the file on your phone, the changes sync back to your computer. This works for Microsoft Office files (Word, Excel, PowerPoint), photos, PDFs, and most other file types.

Syncing requires an internet connection. If your computer is offline, you can still open and edit files that you've already downloaded to your computer, and the changes will sync once you reconnect. Files that exist only in the cloud (not downloaded locally) won't open until you're back online.

The difference between syncing and cloud-only storage

By default, OneDrive syncs everything you save to it — meaning copies exist both on your computer's hard drive and on Microsoft's servers. This takes up space on your computer but lets you work offline and keeps files available even if the cloud service goes down.

OneDrive also offers Files On-Demand, a feature that stores files only in the cloud and downloads them to your computer only when you open them. This saves hard drive space, especially useful if you have a small solid-state drive. You can turn on Files On-Demand in OneDrive settings: right-click the OneDrive icon in the taskbar, select Settings, go to the Settings tab, and check "Use Files On-Demand."

You can also choose which folders sync to your computer. In OneDrive settings, go to the Account tab and click "Choose folders." Uncheck any folders you want to keep only in the cloud. This is helpful if you have a large photo library but limited hard drive space.

What happens to files if you stop using OneDrive

If you sign out of OneDrive or uninstall it, the files on your computer stay there — they don't disappear. However, they stop syncing. Any changes you make to those files won't upload to the cloud, and changes you make on other devices won't read to your computer.

Files you've already uploaded remain on Microsoft's servers and are still accessible through OneDrive.Com or the OneDrive app on your phone. If you sign back into OneDrive on your computer later, syncing resumes and your files update to match what's on the cloud.

If you delete a file from OneDrive on your computer, it goes to the OneDrive Recycle Bin, not your regular Recycle Bin. You have 93 days to restore it before it's permanently deleted. To access the OneDrive Recycle Bin, go to OneDrive.Com, click the Settings gear, and select "Recycle Bin."

OneDrive storage plans and costs

OneDrive comes with 5 GB of free storage. This is enough for documents and a modest number of photos, but fills quickly if you store large video files or thousands of images.

If you need more space, Microsoft offers 100 GB for a monthly subscription. You can also buy 1 TB or 6 TB plans, though these are usually bundled with Microsoft 365, which includes Word, Excel, Outlook, and other Office applications. Microsoft 365 subscriptions start at a monthly cost and include 1 TB of OneDrive storage per person.

You can check how much storage you're using by clicking the OneDrive icon in the taskbar and selecting "Help & Settings," then "Settings." The storage bar at the top shows your usage. If you're running low, you can delete files you no longer need, or upgrade your plan through the same settings menu.

Common problems and how to fix them

If files aren't syncing, first check your internet connection. OneDrive requires a stable connection to upload and read files. If you're online but syncing is stuck, right-click the OneDrive icon in the taskbar, select "Pause syncing," wait 10 seconds, and select "Resume syncing."

If you see a red X next to a file, there's usually a conflict — the file was edited in two places at once, or the filename contains characters Windows doesn't allow (like asterisks or question marks). OneDrive creates a copy with a different name so you don't lose work. Check your OneDrive folder for files with names like "Filename (1)" and decide which version you want to keep.

If OneDrive won't start, restart your computer. If it still doesn't work, sign out and sign back in: right-click the OneDrive icon, select "Settings," go to the Account tab, and click "Unlink this PC." Then sign in again with your Microsoft account. This usually fixes sync problems without deleting any files.

Frequently Asked Questions

Is OneDrive the same as OneDrive for Business?

No. OneDrive is the consumer version for personal use. OneDrive for Business is part of Microsoft 365 for work and comes with more storage and different sharing controls. If your employer provides you with a Microsoft 365 work account, you'll have OneDrive for Business in addition to your personal OneDrive.

Can I turn off OneDrive completely?

Yes. You can uninstall OneDrive through Settings (search "Add or remove programs"), or you can just sign out and leave it installed but inactive. If you uninstall it, you can reinstall it later from the Microsoft Store without losing any files.

What if I don't want to use OneDrive?

You don't have to use it. You can ignore the OneDrive folder and save files to your Documents or Desktop instead. OneDrive will still be installed, but it won't take up space unless you actually save files to it. If it bothers you, you can uninstall it or turn off syncing in settings.

Can other people see my OneDrive files?

No, not unless you share them. By default, your OneDrive is private. You can share individual files or folders with specific people by right-clicking them in File Explorer, selecting "Share," and entering their email address. You control whether they can view only or edit the file.

What happens if my Microsoft account is hacked?

The person with access to your account could view or delete your OneDrive files. Protect your account by using a strong, unique password and turning on two-factor authentication in your Microsoft account settings. If you think your account is compromised, change your password when ready and review your recent activity.