Controlled Folder Access in Windows 10: How to Enable and Set Up

Controlled Folder Access is a feature introduced in Windows 10 Fall Creators Update released in October 2017. It is designed to protect your folders with some important data (for example, documents) from unauthorized changes performed by untrusted, unwanted programs or malware (encryptors in particular). When the feature is enabled Windows 10 will block access to your sensitive data if the app accessing files in a protected folder is not considered as trusted or its behavior seems to be suspicious in some way. Here is how to enable Controlled Folder Access in Windows 10 and enable protection of your most important folders. 

Enable Controlled Folder Access Feature

Before you turn to setting up the feature ensure you have Windows Defender enabled on your computer. Read the last paragraph in this article about how to quickly enable it.

  1. Double-click the Windows Defender Security Center icon in the taskbar: Windows Defender Security center icon
  2. Go to “Virus & threat protection”.
  3. Click on “Virus & threat protection settings”:Virus & threat protection settings
  4. Enable Controlled folder access: Controlled folder access enable

Once you’ve this, Windows Defender will block each attempt of untrusted program to modify folders you’ve selected. unauthorized changes blocked

Add Protected Folders

You can add your other folders with some important data so Windows will be protecting them too. Click on “Protected folders” and add other folders: add folders to protected folders

How To Add Allowed Apps

You may encounter the situation when Virus & threat protection blocks the program you trust: trusted program blocked controlled folder access

In this case you can add it to the allowed apps list. Click on the “+” icon and browse to the program you wish to add to exclusions: controlled access exclusions

Once you’ve done it Windows 10 won’t block the app anymore.

Precautions

Do not try to add everything to “Protected folders”. Especially it is not recommended to enable controlled access for system folders such as C:\Windows, C:\Program Files, C:\ProgramData. Use the feature exclusively to protect your documents, projects, etc.

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