Happened to my FiL…he stopped at the same stage, ie when they asked for money.
According to some blogs I’ve looked at in the past…
They show you ‘errors’ on your computer but are just normal events logged by Event Viewer…they tell you that these are the viruses that they (as Windows or Microsoft Support) have been notified of.
Then they get you to install free software that allows them to take control of your computer so that they can investigate the virus. This software is harmless and usually freely available shareware.
You the have to share the connection details from this software and they will have access.
They’ll then tell you you have a virus and you have to pay them to remove it.
At this point they may also install malicious software such as key loggers, etc. possibly after you’ve refused to pay them.
I told my FiL to not use it till we came round for dinner the next evening, and I did a format and reinstall.
I once had a cal when I was working from home, he told me he was ‘Windows Support’ and I put on my best IT illiterate voice and said “oh no, really”…and he hung up. I lasted less than a minute…which was disappointing. I was looking forward to telling him I had a mac later in the process.