Here's the discussion about it -> http://forums.cnet.com/7723-6132_102-563986/scam-alert-are-you-getting-phone-calls-by-people-claiming-to-be-tech-support/
Sadly if you did anything they told you to do or let them on your machine, it's anyone's guess what damage was done.
Bob
First question is that I got a couple of phone calls from someone claiming to be from Microsoft window who wanted me to turn on my computer so they could help me with my errors. Did not do it as I did nit know if it was genuine, was it? Then I got a message on my computer saying my virtual memory was very low and I found I could not open more than three window at the same time as it would just freeze up, and they said I would need to fix the problem. Don't know how to, can some one help please? Also the last couple of times I have tried to gointo my computer it would not come on, so I had to turn it off at the power point and on again to get it to go. Then the last time that happened before it came on it did a "checking file systems" where a lot of errors were deleted. Very frustrating. Also what actually causes the Virtual memory to get low? I have Windows XP

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