Try it!
You can back up your important folders on your PC & Mac (your Desktop, Documents, and Pictures folders) with OneDrive, so they're protected and available on other devices.
You can back up a maximum of 5 GB of files in OneDrive for free, up to 1 TB as standard with a Microsoft 365 subscription, or extend that up to 2 TB with add-ons.
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Open OneDrive settings (select the OneDrive cloud icon in your notification area, and then select the OneDrive Help & Settings icon then Settings.)
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Go to the Sync and backup tab.
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Select Manage backup.
Important: If you're surprised that your files are saving to OneDrive, see Files save to OneDrive by default in Windows.
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Click the OneDrive cloud icon up in your Menu bar, click the three dots to open the menu, and select Preferences.
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Go to the Backup tab.
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Select Manage backup.