If your hard disk, and NTFS partitions have for the division of data encryption, it should make a backup of keys, just in case. The key to making the method is as follows.

Click start - run "the order, in open operation dialog input" certmgr. MSC "after press to, open certificate manager. In "the current user - personal - certificate" branch next, we can see a name in your user name of the certificate (if you still not in on NTFS partitions encrypt any data, here there is no certificate). Right-click the certificate, choose "all tasks" of the "export" command. System will open certificate guide, and then press derived hint click next, till the wizard asking if you are private key, choose the "export keystore" can, other options are retained the default Settings, finally, enter the password of user and want to save the path is derived and confirm that the work was finished. The certificate is derived by a PFX for suffix files.

After transplantation or reshipment operating system after, find PFX files, right-click it and choose "installation PFX", the system will pop up a guide, according to import the wizard imported tip complete the operation can read previously encrypted files on NTFS partitions.

Need to remind users, if no backup keys, once the operating system problems need to install, so only use the same username is unable to visit on NTFS partitions the encrypted data. Only import backup key can correctly open the encrypted data files before. If is compressed partitions, need according to the requirements of Windows un-zipped.