The old method of how to deal with semi close friends needing support still works:
1) Redirect their call to voice mail.
2) If the mention computer problems, ignore them for now.
3) Call back in at least 4 hours. By then, they've probably solved it using Google.

(Why "semi close friends"? Because if they're close, I take their calls and if they're not close, I'm not their free support service. And if they're close and want a lot of free labour, they'll soon find themselves distant.)