The answer to 'how to install rewiring' is to completely replace the existing electrical wiring in your home. This involves removing all the old wiring, outlets, switches, and electrical panels, and installing new wiring that meets current electrical codes and safety standards. Rewiring a home is a complex and potentially dangerous task, so it's generally recommended to hire a licensed and experienced electrical contractor to handle the job.
Rewiring a home is an extensive project that requires significant time and planning. It's important to turn off the main power supply before beginning any work, and to carefully map out the existing wiring and electrical system. The contractor will need to run new wires through the walls, ceilings, and floors, and install new outlets, switches, and electrical panels. They will also need to ensure the new wiring is properly grounded and meets all local building codes.