NTFS encrypted folder causes file to not open

Q: The computer uses Windows XP system, and the partition format is NTFS. A few days ago, I used the "Encrypt" feature in properties for My Documents, after the previous folder (c:documents and Settings user name) has been encrypted, now "My Documents" in the file can not open, decrypt the top folder or not open, the separate decryption of "My Documents" file, prompting file to apply property error denied access. Excuse me, how can I open the file in My Documents?

A: Before resolving the failure, you should first figure out how to encrypt it, EFS encryption, or ACL user Rights control.

If you encrypt this folder as a private, you are using ACL user Rights control. The way to unlock ACL user rights is to open Control Panel → folder Options First, and then view the tab to clear the duplicate options before using simple sharing, and click OK. Then, right-click the C:documents and Settings username my Documents, switch to the Security tab, and add your own account to the group and the user.

If you use the "Properties → advanced → encryption to protect data" encryption, then you are using EFS encryption technology. EFS encryption uses digital certificates to encrypt files, to unlock EFS encryption, to log in with an account that operates when encrypted, and then to reverse operation of the encryption operation.