A laptop or wall power.
Laptop power supply repair service.
Computer power supply repair.
If you are having trouble installing software most computer repair pros will help for around 10 per install.
Lets continue by unplugging the high voltage cable from the power brick if your power supply allows for this and by making a single cut through the low voltage cable near the fraying cord.
Never try to repair a power supply that is in service or connected to any source i e.
Power jack repair replacement fix specializes in dc power jack replacements repair and fixes of charging ports on laptop computers.
If you need to add a new hard drive ram video card power supply or more it typically costs 20 per componet.
Many power cords also include a large choke probably a ferrite which i assume is to prevent rf interference generated by the laptop from leaking back onto the cord and turning the length between the laptop and the power adapter into an antenna.
Choosing the right replacement power supply is not always a simple task.
Frankly i just cut them off on a repair if they are close too the barrel connector.
How to fix laptop not powering on good battery power adapter and power jack.
Proceed at your own risk.