Last night, i bought used branded pc on trial base but now the matter is i don't know how to check that it will be good for me or how it has been used. So here are few questions: 1- How to check computer (pc) accessories will work with model i am buying? 2- How to check how many ram and processor has been used? speed is quiet fast it just take 30sec. but it don't have any files its a new win copy but in my old pc i have around 3-4lack files and folders. So how to understand that how 3 lack files will impact my used pc. looking for ur best suggestions