I would say that it hasn't increased 20% because 1. if the starting percentage was 18%, you would see a larger precentage but that isn't the case.
Answer:
ok Alright I will correct them
This isn't a question, pal.
Answer:
To reset your PC
Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings. ...
Tap or click Update and recovery, and then tap or click Recovery.
Under Remove everything and reinstall Windows, tap or click Get started.
Follow the instructions on the screen.