I am trying to use Advanced EFS Data Recovery from the Elecom Soft to recover data on Win 7 Professional PC. The PC did not work well and I re-install Win 7. There is Windows.old folder on C drive. I encrypted some files and folders using the standard Windows function from property. Now, these files cannot read from newly installed Windows 7 Professional. I have been strugging with this PC from the end of 2011 and new year in 2012, I did not remember correctly, however, I am lucky to export pfx file to USB HDD. I hope this key will help with Adcanced EFS Data Recovery. When I tried to add the information of the pfx file to the existing EFS related ley information, I "Add Certificate" and select the pfx file. However, I do not remember the password for this pfx file. I think I did not input any password for export of this pfx file on the USB HDD, if I remember correctly. I hope someone will help me to find a password for the pfx file, or to find a way to run Advanced EFS Data Recovery approproately. Thanks in advance for your help.Yoshiaki Tsuzuki

Hi, There are no way that can get the password from a pfx file unless you remember it. I suggest you restore previous Windows 7 from Windows.old folder, then decrypt these files to get access. http://support.microsoft.com/kb/933168 Juke Chou TechNet Community Support

Hi, There are no way that can get the password from a pfx file unless you remember it. I suggest you restore previous Windows 7 from Windows.old folder, then decrypt these files to get access. http://support.microsoft.com/kb/933168 Juke Chou TechNet Community Support

Hi, Change your region setting on the right top of that website.Juke Chou TechNet Community Support

Thank you Juke for your reply. Password recovery from pfx file would be time consuming and costly procedures. I am suprised to find the information in Japanese on your sugessted URL, it may because brouser which I use. I hope there will be a chance to restore the former environment including the encryption issues. I welcome further advices from anyone who have experienced or experimented recovery of encrypted data/files from Windows.old folder restoration. Yoshiaki Tsuzuki

Hi, Change your region setting on the right top of that website.Juke Chou TechNet Community Support

Thank you Juke, I found the function.Yoshiaki Tsuzuki

For anyone who stumbles across this thread while looking for ways to recover pfx or p12 file passwords, I wrote a utility which helped me 'remember' a certificate password I had lost. In my case, I had remembered 90% of the password but had fat-fingered a character. If you need to attempt password recovery in a case where you know most of the password, my utility may be useful. The utility is released Open Source (MIT License). You can find more information about it here (boredwookie.net). A download link to the source code is made available at the Bottom of the page.

Thank you very much, your program works great :)