If you re working from the attic you can drop a weighted string down wall cavity then attach the wire to the string and pull it through.
Running wires without attic.
Calculate the proper amount of wire and the most expedient routes for the circuits.
Running wires inside rigid conduit.
Prepare for that by moving insulation away from the walls through which you need to pass the wires and marking the existing wires you need to remove.
Converting an attic to a bedroom and bath.
The staple gun should be loaded with wire staples designed for holding the size and type of wire you are running.
The following links will assist you with your electrical question.
The attic wiring should be protected and secured to ceiling joists or other wood structural supports.
To run the wires inside rigid conduit you ll need a hacksaw a pipe bender capable of bending 1 2 in.
Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well.
Bring all of the wire up into the attic.
Attach the wire or cable to a fish tape or coat hanger using electrical tape and feed it into the hole until it reaches the opening at the other end.
Running wires without attic or basement.
Watch the entire process step by step.
The actual install of recessed lights here https youtu be 5yc8aqnvqqg the long bit is actually used.
If you don t want to remove drywall then you ll be running most of the wires through the attic or the crawl space.
While one person holds the flashlight the other person should use a staple gun to run the wire along the rafters from one entry hole to the other.
When i get it to where it matches up with the correct joist bay i could run it up the wall where i have to cut out the rock and notch the top plate s to get it into the ceiling.