介绍:
A: Oh, great! This stupid computer froze again! That's the third time today!
A: Hey Samuel, can you come take a look at my PC? It's acting up again. It must have a virus or something.
B: Just give me a second. I'll be right up.
B: I ran a virus scan on your computer, and it turns out that you have a lot of infected files!
A: But I'm quite careful when I'm browsing the Internet. I have no idea how I could have picked up a virus.
B: Well, you have to make sure that your anti-virus software is updated regularly. Yours wasn't up-to-date. That's probably what was causing your problems.
A: OK. Anything else?
B: Yeah, try not to kick or hit the computer!
A: Um yeah... Sorry about that.
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