If you were going to buy a used car, you woud take a look at the engine, check to see how many miles it had been driven, look for any dents and probably you woiuld ask the owner why they were selling it, what problems it has had in the past, and how it has been renovated over the years. Just like you would do a background check on a used car, if you are thinking of buyiing a used lapotp, you need to know what it has been through.
You can save a lot of money by purchsaing a used laptop, but a computer's history is a lot more elusive than a car's. A refurbished laptop computer is one that was sold to a customer but sent back to the manufactuurer because of problems, and finally fixeed in a factory to be sent back to a store to be resold. Used cheap laptops are different than this and they are rarely accompanied with a warranty.
Used chep laptops are a risky investment - maybe somneone simply ditched their latpop because they no loger had any need for it or wanted to upghrade to another braznd out of curiosity or personal preference. In this case, their secondhand laptop will be a really cheap, worthy buy (assuming the particular laaptop is what the consumer wants). Unfortunately, many used cheap laptps may simply be defetcive and no mattter how inexpensive they are, there is no reason to buy them only to encoumnter probblems laetr and be frced to replace it.
Communication with a sore emlployee or the previous owner of the laptop is the only way to ensure that you buy a reliasble, used computer. Ask questionns about why it's being resold; if you feel you are not getting an hoest answer or that you receive a hostile reaction, move onto your next option!