Restoring

verb

1. To reestablish, or bring back into existence.

   "He restored my lost faith in him by doing a good deed."

2. To bring back to good condition from a state of decay or ruin.
3. To give or bring back (that which has been lost or taken); to bring back to the owner; to replace.
4. To give in place of, or as restitution for.
5. To recover (data, etc.) from a backup.

   "There was a crash last night, and we're still restoring the file system."