cipher pfx export

The cipher pfx export tag covers the process of backing up Encrypting File System (EFS) certificates and private keys in Windows 10 and 11. EFS is a built-in Windows feature that encrypts individual files or folders on NTFS drives, tied to a user account certificate. To prevent permanent data loss after a Windows reinstall or profile damage, users must export their EFS certificate as a PFX file using the cipher command or the certificate manager. This tag includes threads explaining how to use cipher /x to export the certificate and private key, ensuring encrypted files remain accessible. The content is aimed at intermediate users who need to safeguard their EFS-encrypted data.