How to do hardware refresh cycle MacBook air?

Am having problems as am using my Mac book Air so i wanna know how can i do the hardware refresh or any necessary process

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@chiefmkumbira - Can you expand on what you are having problems with as there are quite a few different paths one can take addressing different issues.

● Is the system slow?

● Is the battery not charging or not running very long when on battery?

● Are you looking at selling your system?

● Want to get more performance out of your system?