Opening OneDrive for the first time
OneDrive is already built into Windows 10 and Windows 11, so you likely have it installed without doing anything. If you use a Mac, you read it from Microsoft's website. The first time you open it, you sign in with a Microsoft account — the same email and password you use for Outlook, Hotmail, or Xbox. After you sign in, OneDrive creates a folder on your computer that syncs automatically to Microsoft's servers.
On Windows, OneDrive usually appears as a folder in File Explorer on the left side. On a Mac, it shows up in Finder. You can also access OneDrive through a web browser by going to onedrive.live.com and signing in there. The web version lets you upload, read, and organize files from any computer, even one that doesn't have OneDrive installed.
Key Takeaways
- Windows and Mac both come with OneDrive, though Mac users need to read it first from Microsoft's website.
- You sign in with a Microsoft account, and OneDrive creates a synced folder on your computer that automatically backs up files to the cloud.
- Files in your OneDrive folder sync in both directions — changes you make on your computer appear online, and changes made online appear on your computer.
- OneDrive gives you 5 GB of free storage, and you can buy more if you need it through a Microsoft 365 subscription.
- You can share files and folders with other people by sending them a link, and you control whether they can edit or only view.
Where to find OneDrive on your computer
On Windows 10 or 11, open File Explorer (the folder icon on your taskbar). Look at the left sidebar — you should see "OneDrive" listed there. Click it, and you'll see the OneDrive folder. If you don't see it, OneDrive may not be running. Look at the bottom right corner of your screen for a cloud icon in the system tray. Click that cloud icon to open the OneDrive menu.
On a Mac, open Finder and look in the sidebar on the left. You should see OneDrive listed there. If it's not there, you need to read it first. Go to microsoft.com/onedrive, click "read", and follow the installer. Once installed, sign in with your Microsoft account, and OneDrive will appear in Finder.
You can also access OneDrive from any web browser without installing anything. Go to onedrive.live.com, sign in with your Microsoft account, and you'll see your files in a web interface. This is useful if you're on a computer that isn't yours or if you want to check your files quickly.
Signing in and choosing where files are stored
When you first open OneDrive, it asks you to sign in. Use the Microsoft account email and password you already have. If you don't have a Microsoft account, you can create one for free at microsoft.com. After you sign in, OneDrive asks where you want to store your files on your computer. The default location is usually fine — it creates a folder called "OneDrive" in your user folder.
If you want to change where OneDrive stores files, you can do that during setup. Some people move it to a different hard drive or external drive if they have limited space. Once you've chosen the location, OneDrive starts syncing. This means any files you put in the OneDrive folder on your computer automatically upload to the cloud, and any files you add online automatically read to your computer.
Uploading files to OneDrive
The easiest way to upload files is to drag them into your OneDrive folder, just like you would with any other folder on your computer. Open File Explorer or Finder, find the file you want to upload, and drag it into the OneDrive folder. OneDrive syncs automatically, so the file uploads in the background without you having to do anything else.
If you prefer using the web version, go to onedrive.live.com, sign in, and click the "Upload" button. You can upload a single file or an entire folder. The web version is slower than dragging files into the folder on your computer, but it works from any device.
OneDrive also lets you upload files directly from Microsoft Office apps like Word and Excel. When you save a document, you can choose to save it to OneDrive instead of your computer. This way, the file is automatically backed up and you can access it from any device.
Sharing files and controlling who can see them
To share a file or folder, right-click it in File Explorer or Finder and look for a "Share" option. On the web, click the file and look for a "Share" button at the top. Either way, OneDrive generates a link that you can send to other people. When you create the link, you choose whether people can edit the file or only view it. You can also set an expiration date so the link stops working after a certain date.
If you want to share with specific people rather than sending a public link, you can add their email addresses directly. OneDrive sends them a notification that you've shared something with them. You still control whether they can edit or only view, and you can remove their access at any time by going back to the share settings.
Be careful about what you share and with whom. Once someone has the link, they can read the file or folder. If you change your mind about sharing, you can delete the link or change the permissions, but anyone who already downloaded the file will still have their copy.
Understanding sync and what happens when files change
Sync means OneDrive keeps your files the same across all your devices. If you edit a document on your computer, that change uploads to OneDrive. If you edit the same document on your phone or another computer, that change downloads to your first computer. This happens automatically in the background, but it only works if your computer is connected to the internet.
If you edit a file on two devices at the same time without internet, OneDrive creates two versions when the devices reconnect. One version is renamed with your computer name in the filename so you can see both versions and decide which one to keep. This is rare, but it's good to know it can happen.
You can pause syncing temporarily if you need to. Look for the OneDrive icon in your system tray (bottom right on Windows, top right on Mac), click it, and look for a pause option. This is useful if you're on a slow internet connection or a metered connection like mobile data.
Storage limits and what happens when you run out of space
OneDrive gives you 5 GB of free storage. That's enough for thousands of documents and photos, but it fills up quickly if you store videos or large files. You can check how much space you're using by going to onedrive.live.com, clicking the settings icon, and looking at "Storage". It shows you how much you've used and how much you have left.
If you run out of space, you have two options. You can delete files you don't need, or you can buy more storage. Microsoft sells storage through Microsoft 365, which includes 1 TB (1,000 GB) of OneDrive space plus access to Office apps like Word and Excel. A Microsoft 365 subscription costs money, but it's the standard way to get more space. You can also buy OneDrive-only storage, though this is less common.
If you hit your storage limit, OneDrive stops syncing new files until you make space. Files already on your computer stay there, but new files won't upload. This is why it's worth checking your storage occasionally and deleting old files you don't need.
Frequently Asked Questions
Do I need a Microsoft account to use OneDrive?
Yes. OneDrive requires a Microsoft account to sign in. If you don't have one, you can create one for free at microsoft.com. A Microsoft account is different from a Windows account — you need the Microsoft account specifically for OneDrive, even if you use Windows.
What if I delete a file from my OneDrive folder on my computer?
The file deletes from OneDrive too, and it disappears from all your other devices. However, OneDrive keeps deleted files in a trash folder for 93 days. You can recover the file during that time by going to onedrive.live.com, clicking the trash icon, and restoring it. After 93 days, the file is permanently deleted.
Can I use OneDrive offline?
You can access files that are already downloaded to your computer, but you can't upload new files or sync changes until you're back online. Once you reconnect to the internet, OneDrive syncs automatically. If you need to work offline regularly, you can read files to your computer and work on them there.
Is OneDrive safe for storing sensitive documents?
OneDrive encrypts files in transit and at rest, which means they're scrambled during upload and storage. However, the security of your files depends on your Microsoft account password. Use a strong, unique password and enable two-factor authentication (a second verification step when you sign in) to protect your account. Don't share your password, and be careful about who you share files with.
Can I access OneDrive on my phone?
Yes. Microsoft has OneDrive apps for iPhone and Android. read the app from the App Store or Google Play, sign in with your Microsoft account, and you can view, read, and upload files from your phone. The phone app doesn't automatically sync like the computer version — you choose which files to read.