Linux was easy to install on the old pc. It comes with the Firefox browser. The Mint version is set up almost like Windows 10, except you can't see the old C: drive anymore, just a folder!


The only hard part was disabling "Secure Boot" on the old pc first. You need to get into that Dell (BIOS/UEFI) thing. You know... that process where you turn on the computer and start banging on the F2 key like a dunce, because if you miss the time window you have to start all over, and a little screen comes up that works like it was created in the 1960s.
Unfortunately, it
sometimes requires a password, which I know for a fact I never set. There is only one workaround, short of calling Dell support and submitting proof you really do own this computer. You have to pull a two-hole jumper off of pins 1 & 2 of a 3-pin connector on the motherboard, move it over to pins to 2 & 3, then restart. Move the jumper back the way it was, before rebooting the next time.
I have tortured this hard drive more in the last 2 weeks than all the previous 10 years put together. It still bothers me that there are only 77 bad sectors (out of 244 million) over 11 years and it has to be replaced. In dog years that's about my age. I have several bad or failing sectors but I'm still kicking. Most of the bad sectors on the HDD are adjacent. Maybe a no-see-um gnat got inside the hard drive one day and left a deposit. But what do I know.
Anyway, the cost of a new hard drive would be less than a one-night stay at a Holiday Inn Express. Even better, I discovered you can add up to TWO extra hard drives to my NEW pc. I can stick it on the old pc first, just to find out what happens. Then eventually move it to the new pc.
I've already ordered a new hard drive. It may sound like I know what I'm doing, but it was a very steep learning curve, and I'll forget everything next week. If it weren't for this diary thread, I would never have sorted it all out. I may explain next time. It's not what you think.