EFS - Files encrypted with expired certificate and unable to be opened


  • Hello,

    I have a problem that started randomly where I was suddenly unable to access files encrypted with EFS. I get access denied errors and am unable to move or copy the files.

    The files that were encrypted using a user's domain-issued certificate, the certificate is expired but still viewable if you search in certmgr.msc. There are subsequent self-issued certificates which I assume should have taken over but they don't seem to have. The certificate with the relevant thumbprint expired over 12 months ago (15 months to the day).

    The expired certificate with the correct thumbprint shows as having a private key but will not allow me to export with private key.

    2018年7月11日 1:57