Windows 10 Pro
Version 2004
Build 19041.928

Hey guys. This is the second time my Windows machine has decided to change my PFX certificate on me without asking/warning. I have an external HDD with files that are encrypted with a PFX file that I created in 2018. About 6 months or so ago, I couldn't access any of my files. Digging into the issue, Windows had switched my PFX certificate to a new one that I never generated. I guess the system generated it on its own. I was able to restore my old PFX certificate and access the files again. (Thank you backups!!!)

Fast forward to today. It has happened again. My Windows system has switched to a new PFX file that was generated last month. I still have my old PFX certificate, but now I am getting an error when trying to import it. I can no longer access my encrypted files.

Here are some screenshots of my issues:

Windows changed my PFX certificate - Old certificate will not import-screen-shot-2021-05-04-11.35.57-am.pngWindows changed my PFX certificate - Old certificate will not import-screen-shot-2021-05-04-11.37.19-am.pngWindows changed my PFX certificate - Old certificate will not import-screen-shot-2021-05-04-11.37.39-am.png