If a ransomware threat is found on a device, Windows Defender will notify you of the threat, help you remove the ransomware from your device, and give you options to recover your OneDrive files to the state they were in before the attack occurred. Now, you can set up protection for your important folders in Windows (your Desktop, Documents, and Pictures folders) when using either your personal OneDrive account, or your work or school account. When you save your files to OneDrive, you can get to them from anywhere and your files are safe in OneDrive if anything happens to your device.

It’s part of the new experiences that arrived with the Windows 10 April 2018 Update. If you want an additional layer of protection from ransomware, try saving your files in OneDrive. OneDrive is built into Windows 10, and you can find your OneDrive files through File Explorer Save your files online to OneDrive and you will be able to view, browse, upload, and share them from any PC, tablet, or phone. OneDrive is free online storage that comes with your Microsoft account. How Turn On or Off OneDrive PC Folder Backup for Desktop, Documents, and Pictures folders in Windows 10

Stop onedrive from syncing desktop