This whole thing just started this week, when turning on the computer in the morning I get the message that is on the picture. I have a feeling that my hard drive might be falling, I bought the desk top refurbish back in 2014-2015 time period. If the problem is related to a falling hard drive, there is plenty of space to install another drive in the case or I am better off just getting another used/ new system. No crazy games or work related stuff just basic internet, some pictures and info regarding projects.
I recently went thru similar. My honest recommendation is that if you're technology challenged like I am, pack it up, take it to Best Buy, and pay them a $200 annual Geek Squad membership. See if they can fix it or salvage the data to a new external hard drive (~$100).
Then either buy something they have on the floor or do what I did, go home, shop online and find a good affordable machine. Then take that new machine to BB and have them "build" what you want. They'll keep it for a day or so, build it, install anything you want, transfer all data, set it up, put anti-virus on it, and so forth. It's an incredible 1-year membership value.
I say this because your motherboard may be on borrowed time at the 6 year mark. You could just replace the hard drive. But I would start shopping around for a new system personally so you don't have problems later. Either way BB geeksquad was a good value for me.
For the $1000 value machine I'm working on, I'm into it for about $500 (the $200 BB membership, $100 in accessories, and about a $200 refurb Dell purchased on Amazon). I have 3 large internal hard drives, huge amounts of RAM, 8 USB ports, DVD-R drive, and upgraded power supply ($20), etc.
I would have spent a month of aggravation trying to build something like this. $500 very well spent.