Laptop 2 in 1 hp envy

[guria101]

I am about to buy a hp envy x360 from someone I don't know. How can I check if the computer is in good wiring condition. Plz advise

 

[rgd1101]

MERGED QUESTION
Question from guria101 : "Laptop 2 in one"

I am about to buy a hp envy x360 from a person. Is there a way to check that it is working fine that he did not give me something that is messed up. Please guide