Windows 10: Recover EFS key

Discus and support Recover EFS key in AntiVirus, Firewalls and System Security to solve the problem; Hi, I recently forgot to backup the EFS key from Win 1709 and upgraded my system parts and installed Win 20H2. Now I cannot open my encrypted files,... Discussion in 'AntiVirus, Firewalls and System Security' started by Xtreme512, May 4, 2021.

  1. XTREME512
    Xtreme512 Win User

    Recover EFS key


    Hi, I recently forgot to backup the EFS key from Win 1709 and upgraded my system parts and installed Win 20H2. Now I cannot open my encrypted files, they are not essential but would be pleased to try and retrieve them. Luckily, 1) I have those files on my D:/ backup drive, which is not altered. 2) I installed new system on a new disk, cpu, mobo. Which is, I have the old OS disk and system unaltered. So can I export the key without booting old disk? Or do I have to build the old system again, boot and get it (which I will eventually for my brother but will take time)?

    :)
     
    Xtreme512, May 4, 2021
    #1
  2. TRY3
    Try3 Win User
    Try3, May 5, 2021
    #2
  3. SYGNUS21
    sygnus21 Win User
    Recover EFS key

    For clarity what is an EFS key? Are you talking about BitLocker?
     
    sygnus21, May 5, 2021
    #3
  4. XTREME512
    Xtreme512 Win User

    Recover EFS key

    Recover EFS key

    No not the bitlocker. I simply encrypted some files in properties -> secure the file, that is with using Encryption File System of Windows. And forgot to export the key for backup purposes.

    Even though I have the old /users folder ready and the whole disk? Cant it be done without booting?
     
    Xtreme512, May 5, 2021
    #4
Thema:

Recover EFS key

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