To be honest you are in the right place already. If you take the first step and install Mint, Fedora Kinoite or something similar on the laptop, there are many people here who would be willing to offer you support for free here on Lemmy.
You won't find a lot of support IRW/IRL though as many companies are still sleep-walking in the Windows world.
You will however need to take some steps for yourself. If you're willing to get over that first hurdle, you will almost certainly find someone here to help you with any problem you have (including installation).