The latest Windows 10 Preview Build released to some Windows Insiders on Wednesday has added a new feature called "controlled folders," Microsoft says. The new feature aims to protect files from malicious apps and other threats by monitoring changes made to contents within a controlled folder.
The documents, pictures, movies and desktop folders are automatically added as controlled folders, which cannot be changed by users.
Microsoft says that users will get a notification if any malware or blacklisted applications attempt to change a protected file. Windows Insiders can activate controlled folders via the Windows Defender Security Center under Virus & Threat Protection in settings.
Users can also allow apps they trust to make changes. Trusted apps can be added through the Controlled Folder Access Panel.