It doesn't do what it used to do.

Client walks up to Tech

Client: Something's wrong with my computer.
Tech: ... what's wrong with it?
Client: It doesn't do what it used to do.
Tech: Like...
Client: It just doesn't work like it used to.
Tech: Is it not turning on? Does it have a virus? Is it going slow?
Client: I don't know... it just doesn't do what it used to do. I don't know what happened.
Tech: Can I take a look at it?
Client: Yeah, here you go!
*Client hands laptop to Tech
Tech: It isn't turning on.
Client: I know! I haven't used it in a long time.
Tech: Is it charged?
Client: No.
Tech: Can I have your charger so I can see what's wrong with it?
Client: Oh, yeah.
Tech: Well it's not booting your operating system. Since you don't know what happened to it when did it start doing this?
Client: After I dropped it.
Tech: ... You're going to need to take this someplace else. If the hardware is broken we can't fix that here at the University. You'll need to take it someplace else.