Your first instinct when your computer starts to go through a few problems here and there is probably going to be to try and make it so that you end up going to some kind of a trusted computer company that specializes in repairs and the like. This is definitely a good idea, but one thing that you should probably try to realize is that for the most part, you should try to be careful about who you ideally end up giving this computer to in the first place.
The reason for this is that some people are going to tell you that they are going to diagnose your computer first before fixing it, and while this is an accepted part of the reparation process a good and trustworthy repair service provider is never going to charge you just for diagnosis. They would instead diagnose the issue with the computer on the spot after which they are probably going to end up telling you what the problem is and giving you a quote for how much they are going to charge for repairs.
If you meet with someone and they tell you that they are going to charge you money just to see what the issue is, it’s fair to say that they are really not worth working with and you should probably try looking for someone else to help you get the job done. Find someone that is going to focus on doing a good job themselves rather than making you feel like they are doing you some kind of a favor because of which they are entitled to charging an amount that is far more than what would be considered reasonable.