Can't access or move rich text document!

[The White Knight]

I regretfully locked (yellow lockpad emblem on file) or encrypted the contents of a rich text document file using the default option in the file properties then I moved it from my win8 system to my new win10 without remembering to undo this feature. Now no matter what I do I cannot access or move it.

I've tried the TakeOwnershipEx app and the "Take Ownership" option in the right-click context menu. When I try to open the file it states:

Access to *filepath* was denied.

I'm beginning to think this is less about granting ownership and more about the fact I used the "encrypt contents to secure data" EFS windows feature.

What can I do to regain access?

 

[The White Knight]

Realizing I didn't backup the certificate so i'm using Advanced EFS Data Recovery to help. Stupid mistake but windows doesn't automatically prompt one to backup the key either making the option seem harmless.

 

[The White Knight]

So it found the correct keys but the username and password i'm using which is correct is not decrypting the key. I am unable to even move the file and save the recovered keys to attempt recovery later. Worst implementation of file encryption ever.