I do not know why I needed this stuff on my mom's laptop, but I assume I was either installing pirated software on her machine (honestly, that is the most likely reason) or I was trying to troubleshoot stuff and her CD/ DVD drive wasn’t working for some reason. One thing is for certain, she did not put it there! I made her move to a Mac in 2009 or 2010 before I would do any more computer repair for her, so it was truly a blast from the past.
(Unrelated aside, my father refuses to use a Mac and if I gave him a Linux laptop, he’d literally just go buy something overpriced and covered in adware at Best Buy and get scammed into some antivirus subscription, so I begrudgingly had to start agreeing to service his laptop again after he fell for a ransomware scam the second time, not to mention the fact that I got a job at Microsoft sort of made my “no Windows tech support” rule feel wrong (even tho I worked on Linux at Microsoft and had a corporate-issued Mac.) Thankfully, Windows is much easier for me to deal with these days and I’ve set up his machine so I can ssh into it remotely if I have to. )