Your neighbor should consider maybe getting a call blocking device or phone.. You can google them and many are around $60.00 or so.

I do computer repair for the elderly and this person called an elderly neighbor (she just turned 78) every day 2-4 times a day for the past week. He (says his name is Brent) told her that her computer was infected from her downloading and he wanted her to go to her computer and he would show her how to find the infections and that because he was calling from Microsoft that for a fee he could talk her thru downloading the program to clean and speed up her computer. She told him not to call back and hung up on him. I was here the last time he called and I spoke with him to tell him not to call back! He has been told not to call back at least 10 times. He just kept talking over me every time I said anything - kept saying "ma'am you remember me calling before" - He was trying to bully and scare my elderly neighbor into buying his product! He is a POS.    

Keep getting calls from same people...   Say they are Computer Geek and want to verify some info.  Can barely understand a thing they say.  They were also very rude.   Sure its a scam.

Got call from 941-347-6086, which came up as Unknown Caller on my Caller ID, "Ivan" stated he was from Microsoft and they were getting many error messages from my computer. He said this was a one time only call to help me, after that I would have to take care of the problem myself. That started the warning bell in my head. He asked me to log on to my computer and enter a code in my RUN box "EVENPV" which I would not do. I then googled the phone number, and found it to be some computergeek company in Florida. This was not Geek Squad! I hung up. The man called back, angry that I had hung up. I hung up again, and he called back, but did not leave message on voicemail.