Set application protection settings for Windows 10 devices
Create an app management policy for Windows 10
If your users have personal Windows 10 devices on which they perform work tasks, you can protect your data on those devices as well.
Go to the admin center at https://admin.microsoft.com.
On the left nav, choose Devices > Policies > Add.
On the Add policy pane, enter a unique name for this policy.
Under Policy type, choose Application Management for Windows 10.
Under Device type, choose either Personal or Company Owned.
The Encrypt work files is turned on automatically.
Set Prevent users from copying company data to personal files and force them to save work files to OneDrive for Business to On if you don't want the users to save work files on their PC.
Expand Recover data on Windows devices and it is recommended that you turn it On.
Before you can browse to the location of the Data Recovery Agent certificate, you have to first create one. For instructions see, Create and verify an Encrypting File System (EFS) Data Recovery Agent (DRA) certificate.
By default, work files are encrypted using a secret key that is stored on the device and associated with the user's profile. Only the user can open and decrypt the file. However, if a device is lost or a user is removed, a file can be stuck in an encrypted state. The Data Recovery Agent (DRA) certificate can be used by an admin to decrypt the file.
Expand Protect additional network and cloud locations if you want to add additional domains or SharePoint Online locations to make sure that files in all the listed apps will be protected. If you need to enter more than one item for either field, use a semicolon (;) between the items.
Next decide Who will get these settings? If you don't want to use the default All Users security group, choose Change, choose the security groups who will get these settings > Select.
Finally, choose Add to save the policy, and assign it to devices.
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