computer crash warning

[JHADD]

My friend recently purchased a laptop he's never owned one before.
His internet provider is Virgin Media they provided him with a password but he gets on the internet without using the password.
Today he got a phone call from a so called Microsoft technition warning him his computer was going to crash and he needed to access the computer to sort the problem, he told him to press R and the windows logo button.
Fortunately he as only used the computer for getting on the internet he's never used it for banking or anything else is there anything he can do to revert whatever the scammer was trying to do.
How can he create a password that needs to be typed in to enter the internet
Thanks in advance for any help jhadd

[Geek-9pm]

You story is hard to follow.
Many Internet Service Providers do require a password to start the point to point protocol. But once established, the hardware does the authentication. Having the user use a password does little nor nothing to prevent scampers and com artists from trying to pull one over on you.

As a rule, beware of any phone call, e-mail or other communication that tells you do something other contrary to what instruction you already received. If in doubt, tell them you are busy at the moment, but leave the 800 number (tool free)  so you can  will call back. That will stop them. With the 800 number you can find out who they really are. They don't like that. Unless it is a real company.