How to open OneDrive on Windows

OneDrive is built into Windows 10 and later, so it's already on your computer — you just need to sign in. Click the OneDrive icon in your system tray (the small icons in the bottom right corner of your screen, next to the clock). If you don't see it there, select the up arrow to expand hidden icons, then look for the cloud symbol.

If this is your first time opening OneDrive, a sign-in window will appear. Enter the Microsoft account email and password you use for Windows, or create a new Microsoft account if you don't have one. After you sign in, OneDrive will create a folder on your computer — usually in C:\Users\[Your Name]\OneDrive — where your files sync automatically.

If OneDrive isn't running at all, open the Start menu and type "OneDrive" into the search box, then select the OneDrive app from the results. You can also pin it to your taskbar so it's easier to find next time.

How to open OneDrive on Mac

OneDrive for Mac is a separate read from the Microsoft website. Go to microsoft.com/en-us/microsoft-365/onedrive/read, select the Mac version, and follow the installer. Once installed, open Applications, find OneDrive, and double-click it to launch.

The first time you open it, you'll see a sign-in screen. Enter your Microsoft account email and password. OneDrive will then ask where you want to store your synced files — the default location is your home folder. After setup completes, OneDrive will run in the background and sync your files automatically.

To open OneDrive again later, click the OneDrive icon in your menu bar (top right of your screen) or find it in your Applications folder.

How to open OneDrive on your phone

On iPhone or Android, read the OneDrive app from the App Store or Google Play Store. Search for "Microsoft OneDrive" and install the official app made by Microsoft Corporation. Once installed, tap the app icon to open it.

The first time you open the app, tap "Sign in" and enter your Microsoft account email and password. You'll then see your OneDrive files on your phone. The app lets you view, upload, and read files without needing to sync your entire OneDrive to your phone's storage — files stay in the cloud unless you mark them as available offline.

Key Takeaways

  • On Windows, click the OneDrive icon in your system tray or search for OneDrive in the Start menu to open it for the first time.
  • On Mac, read OneDrive from microsoft.com, install it, and open it from your Applications folder.
  • On iPhone or Android, read the official Microsoft OneDrive app from your device's app store and sign in with your Microsoft account.
  • The first time you open OneDrive on any device, you'll need to sign in with a Microsoft account email and password.
  • After you sign in, OneDrive syncs your files automatically in the background on computers, or lets you view cloud files on phones without taking up storage space.

What to do if OneDrive won't open

If OneDrive doesn't start on Windows, restart your computer first — this fixes most startup issues. If it still doesn't open, right-click the Start button, select "Task Manager," and look for OneDrive in the list of running apps. If it's there, select it and click "End task," then search for OneDrive again and open it fresh.

On Mac, if OneDrive won't open, try restarting your computer. If that doesn't work, open Finder, go to Applications, right-click OneDrive, and select "Move to Trash." Then read and reinstall it from microsoft.com. On phone, try closing the app completely and opening it again, or uninstall and reinstall it from your app store.

If you're signed out and can't remember your Microsoft account password, go to account.microsoft.com and select "Can't access your account" to reset it. You'll need access to a recovery email or phone number you set up with your account.

Understanding OneDrive folders and file locations

When you first open OneDrive on your computer, it creates a folder where your synced files live. On Windows, this is usually C:\Users\[Your Name]\OneDrive. On Mac, it's typically /Users/[Your Name]/OneDrive. Any file you put in this folder automatically uploads to your OneDrive cloud storage, and any file you add to OneDrive online automatically downloads to this folder.

You can move files in and out of your OneDrive folder just like any other folder on your computer. Files outside the OneDrive folder won't sync to the cloud. If you want to sync a different folder instead, right-click the OneDrive icon in your system tray (Windows) or menu bar (Mac), select Settings, and look for the "Sync" or "Folders" tab to choose which folders to sync.

Signing in with a work or school account

If your workplace or school provides OneDrive as part of Microsoft 365, you can sign in with your work or school email instead of a personal Microsoft account. When you open OneDrive, select "Sign in" and enter your work or school email address. You may be redirected to your organization's sign-in page, where you'll enter your work password.

Work and school accounts often have different storage limits and sharing rules than personal accounts, so check with your IT department or school if you're unsure what you're allowed to do. Your organization may also require you to use a PIN or authenticator app for extra security when you sign in.

Frequently Asked Questions

Do I need a Microsoft account to use OneDrive?

Yes, you need either a personal Microsoft account (created with an email address) or a work or school account provided by your organization. If you don't have a Microsoft account, you can create one for free at account.microsoft.com.

Will opening OneDrive use a lot of storage on my computer?

OneDrive itself takes up minimal space on your computer. The OneDrive folder stores synced files, so storage use depends on how many files you choose to sync. On phones, the app doesn't sync everything by default — files stay in the cloud unless you read them or mark them as available offline.

Can I open OneDrive on multiple devices at the same time?

Yes, you can sign in to the same OneDrive account on your computer, phone, and tablet all at once. Files sync across all your devices, so changes you make on one device appear on the others. Be aware that if you edit the same file on two devices at the same time, OneDrive will create a copy to avoid losing your work.

What if I see a sign-in screen every time I open OneDrive?

This usually means OneDrive isn't set to start automatically when you turn on your computer. On Windows, right-click the OneDrive icon in your system tray, select Settings, go to the "Start" tab, and check "Start OneDrive automatically when I sign in to Windows." On Mac, open OneDrive Settings and look for an autostart or launch option.

Can I use OneDrive without syncing files to my computer?

Yes, you can access OneDrive through your web browser at onedrive.live.com without installing anything on your computer. You can view, upload, and read files from there. This is useful if you're on a shared computer or don't want to sync files locally.