Put Windows 8 recovery inside laptop hard drive, Sony Vaio T13

A month ago or so I made a copy of the recovery partition using the Windows option to create recovery unit, and when it finished I chose the option to delete recovery partition from the internal hard drive.

A new 25 GB hard drive appeared, everything was fine.

Now I would like to sell this laptop but I don’t know how to put the recovery partition back in its place or if it’s even possible.

I know the backup it’s complete because the data size t’s the same and when i tried it, the restore was from the scratch, even with the sony wizard before the windows configuration.

Any ideas? thanks