Suitable for Windows Vista?

Hi, I was hacked not all that long ago and thought I was connected to a genuine "help desk" (which I eventualy sorted and got rid of) but in the process of their "conning advice" I was informed that my AVG security that I have installed was not suitable for Windows Vista (which I have), only for Windows XP.  These people wanted to dismantle it and reinstal something else ( for a cost of $109.95 payable immediately)  I am not very computer savvy but knew enough to know I was being conned so terminated the connection.
I guess what I want to know is whether or not my current AVG is ok for Vista.
Another question … I recently had a hard drive meltdown and needed a new one installed.  Does this affect my current AVG installation which isn't due for renewal until Nov 2016
Any advice is appreciated
Cheers … Shirley

Hello Shirley.
Thank you for contacting us. I have checked your account details and found you have purchased an AVG Anti virus license. I would like to inform you that your AVG is totally compatible with Windows Vista and you are right with the credibility of the person you spoke with. And you can just re install AVG your AVG on new hard drive with the same license number. Please, feel free to let me know if you require any further assistance. Thank you.

Hello Shirley.
Thank you for contacting us. I have checked your account details and found you have purchased an AVG Anti virus license. I would like to inform you that your AVG is totally compatible with Windows Vista and you are right with the credibility of the person you spoke with. And you can just re install AVG your AVG on new hard drive with the same license number. Please, feel free to let me know if you require any further assistance. Thank you.