EFS encryption with Windows XP

If you encrypt your drive in Windows XP, you can not restore and use the folders on another PC. To use elsewhere, backup your keys.
C:>mmc
Add in Snap-in → Certificats
Click Add and then Finish → Close OK
Goto Certificates Current User → Personal → Certificates
Click file Recovery under Intended Purposes
Right Click on the certificate, AllTasks → Export. Export the private key and certificate to pfx format. Deselect Delete private key on successful export.
Save the pfx file to a disk or CD for future use.