Windows 10: EFS encryption for OneDrive folders

Hi,

in our organization we have EFS encryption policy to encrypt all files and folders in Desktop and Documents.

We are going to activate OneDrive For Business backup know folders synchronization but EFS stopped to encrypt local files on the Desktop everything ok for Documents.


I try to force the policy to encrypt the folder %useprofile%\Desktop and %userprofile%\Onedrive...\Desktop but nothing changes.


Could anyone help with this?

Thank you

:)

 

OneDrive Sync not encrypting files on a EFS enabled folder

Dear,

I use EFS and enabled encryption on the OneDrive folder. It always worked as expected: if I create a file on the folder it is locally encrypted and uploaded successfully to OneDrive cloud (unencrypted), if I create a file somewhere else and upload to OneDrive
cloud it is downloaded and then locally encrypted.

But some time ago downloaded files stopped being encrypted! So I have an EFS enabled folder... with unencrypted files!

I´m currently using 18.131.0701.0004, but previous versions had the same behavior... I would say the versions in use by the beginning of the year were working as expected, but that is a guess.

Thank you for your attention!

 

Backup the EFS encryption key file

Yesterday I installed OneDrive app and linked it to my office 365 enterprise University account. Since then, every time I turn on my pc, I receive a warning about backup of the encryption key from EFS application. But I have never used bitlocker.
I did some search online and I got the list of all encrypted files: there are thousands of files and belongs to Apps, like facebook, onedrive, inkscape and so on.
So my questions are:

• why did that message suddenly appear?
• why are those files encrypted?
• do those files have to be encrypted?
• bitdefender has just found Gen:L: [email protected]@bq2Abpn in temp folder. Could I have got a ransomware that is encrypting all files?

Thanks in advance!

 

Confused about EFS encryption

EFS encryption has never been anything but trouble for me (and probably for most people), and I would love to be able to turn it off completely. I followed the steps on this page:
Disable Auto Encrypt Files Moved to EFS Encrypted Folders in Windows and I'm wondering how free I am from encryption now. The note says the system will still encrypt when copying files, and I'm only safe from encryption when moving files. I'm not sure if that means my system will continue to encrypt a file every time I copy it, or if I'll be free of the problem now. Could anyone please tell me in which circumstances my system will continue to encrypt my files? Thank you for your help!