>"I did a few upgrades last night."
So, to summarize:
Your computers were working just fine.
You spent hours upgrading, installing and reconfiguring, during which only a few things didn't work.
Then you spent more time testing, which revealed that most stuff was still working like it did before and only a few bits and pieces were broken.
After all that, your computers were working just fine.
And you think this is a worthwhile use of your life? To me that would just be hours I was never going back. We must value things differently.