I found a web site that provides absolutely free tech support. The site is called techguy.org. They’ve been around since 1996, and they seem to have a large membership group of around 450,000.
The free part comes from the fact this site is sponsored by ads and is mainly supported by people like you. Through forums, people with various issues can post their problem, and another user who may have the answer posts their answer back.
Since they’ve been around since 1996, they have amassed a lot of problems and solutions that may be applicable to your situation. Be advised though since technology changes at an extremely rapid pace, having been around the Internet that long may not give them the advantage.
Their strength really comes from the large membership. For example, I did a search on “fake antivirus”. The search result came back with over 5000 results. I checked one of the responses and most of them are pretty detailed.
Give their site a try. I know I will on occasion just to see what I can find.