The quickest way in: sign in with your Microsoft account

OneDrive opens when you sign in with a Microsoft account — the same one you use for Outlook, Windows, or Xbox. If you already have a Windows computer or use Outlook email, you likely have one. Go to onedrive.live.com, enter your email address and password, and you are in. That is the entire process for web access.

If you do not have a Microsoft account yet, you can create one free at account.microsoft.com. You will need an email address (any email works — it does not have to be Outlook) and a password you choose. Once created, use those credentials to sign into OneDrive.

On a Windows computer, OneDrive is often already installed and running in the background. Look for a cloud icon in the bottom right corner of your taskbar (Windows 10 and 11). Click it, sign in if prompted, and your OneDrive folder appears as a regular folder on your computer, syncing files automatically.

Key Takeaways

  • Web access requires only your Microsoft account email and password at onedrive.live.com — no installation needed.
  • Windows computers usually have OneDrive pre-installed; look for the cloud icon in your taskbar to sign in and start syncing.
  • Mac, iPhone, and Android users can read the OneDrive app from their device's app store and sign in with the same Microsoft account.
  • Once signed in, you can upload files by dragging them into the browser window or using the Upload button, and they sync across all your devices.
  • Your first 5 GB of storage is free; paid plans start at 100 GB and go up to 2 TB if you need more space.

Accessing OneDrive on different devices

The sign-in process is the same everywhere, but where you find OneDrive changes by device. On a Mac, read the OneDrive app from the App Store, open it, and sign in with your Microsoft account. The app creates a OneDrive folder in your home directory that syncs the same way as Windows.

On an iPhone or iPad, search for "OneDrive" in the App Store, install it, and open the app. Sign in with your Microsoft account. You will see your files in a list and can open, read, or share them directly from the app. Android users follow the same steps using Google Play instead of the App Store.

If you do not want to install anything, you can always use the web version at onedrive.live.com on any device with a browser — phone, tablet, or computer. The web version does not sync files automatically the way the app does, but you can upload and read files whenever you need them.

Uploading and organizing your first files

In the web version, click the Upload button (usually near the top left) and choose files from your computer. You can also drag files directly into the browser window. On the desktop app, straightforward drag files into your OneDrive folder the same way you would move them to any other folder.

OneDrive creates a few folders automatically: Documents, Pictures, and Desktop. You can create new folders by right-clicking in the web version or using the New menu. Organize files into folders the same way you would on your computer — there is no special process.

Files you upload are private by default. Only you can see them unless you share a link or folder with someone else. Sharing happens through a Share button next to each file or folder; you can set whether people can view only or edit the file, and whether they need a password.

Understanding storage limits and what happens when you run out

Every Microsoft account gets 5 GB of free OneDrive storage. That is enough for roughly 1,000 documents or 500 photos, depending on file size. If you need more, Microsoft 365 subscriptions include 1 TB (1,000 GB) of OneDrive storage. You can also buy 100 GB or 200 GB plans without a full Microsoft 365 subscription.

When you reach your storage limit, you cannot upload new files, but your existing files stay accessible. You can delete old files to free up space, or upgrade your plan. Upgrading takes effect when ready — you do not have to re-upload anything.

Signing in on a shared or public computer

If you sign into OneDrive on a computer you do not own — a library computer, a friend's laptop, or a work machine — use the web version at onedrive.live.com instead of installing the app. When you are done, sign out completely by clicking your profile picture and selecting Sign Out.

Do not check the "Keep me signed in" box on a shared computer. If you must use the desktop app on a shared machine, sign out afterward and remove your account from the computer's settings. On Windows, go to Settings > Accounts > Other People and remove your account. On Mac, go to System Preferences > Internet Accounts and delete the Microsoft account.

Troubleshooting when you cannot sign in

If you forget your password, go to account.microsoft.com/account/reset-password. Microsoft will ask you to verify your identity using a recovery email or phone number you set up when you created the account. If you no longer have access to those, you may need to answer security questions or wait for Microsoft to review your request.

If you have the right password but still cannot sign in, clear your browser's cookies and cache, then try again. On Windows, if the desktop app will not open, restart your computer — OneDrive sometimes needs a restart to reconnect. If the problem persists, sign out of OneDrive in your taskbar settings and sign back in.

If you see a message that your account is locked, it usually means Microsoft detected unusual activity. Check your email for a security alert from Microsoft and follow the steps to unlock it. This is a safety feature and typically resolves within a few hours.

Moving files between OneDrive and your computer

With the desktop app, your OneDrive folder works like any other folder. Files you put in it upload automatically; files you delete from it are removed from OneDrive too. If you want to keep a file on your computer but not in OneDrive, move it to a different folder outside OneDrive.

You can also read files from OneDrive to your computer without using the sync folder. In the web version, right-click a file and select read. On the app, press and hold a file (mobile) or right-click it (desktop) and choose read. The file goes to your Downloads folder.

Frequently Asked Questions

Do I need a Microsoft account if I already have an Outlook email?

If your Outlook email is through outlook.com or outlook.live.com, you already have a Microsoft account. Use that email and password to sign into OneDrive. If your Outlook is through work or school, you may have a separate account; ask your IT department for your Microsoft account details.

Can I access OneDrive if I do not have a Windows computer?

Yes. You can use the web version at onedrive.live.com on any computer, or read the OneDrive app for Mac, iPhone, or Android. The web version works on any device with a browser and does not require installation.

What happens to my files if I do not sign in for a long time?

Your files stay in OneDrive indefinitely. Microsoft does not delete inactive accounts or files. You can sign back in anytime and your files will be there. However, if you do not use your Microsoft account for two years, Microsoft may close it; you can reactivate it by signing in again.

Can I use OneDrive at work if my company uses a different cloud service?

Yes, you can have both. Your personal OneDrive account is separate from any work account your company provides. You sign into each one separately, and files stay in whichever service you put them in. Check your company's policy to make sure personal cloud storage is allowed on work devices.

Is my data safe in OneDrive?

OneDrive uses encryption to protect files in transit and at rest. Your files are private by default and only you can see them. Microsoft can see encrypted file names and metadata but not file contents. If you need additional security, you can encrypt files before uploading them, though OneDrive will not be able to preview or search inside encrypted files.