Sometimes, I hate technology

I use a lot of different types of computers.  I've been doing that for years.  I'm pretty handy with all the major system types.  I'm used to weathering and debugging upgrade and installation issues.  So, late last night, when I did an upgrade to the system I'm currently using as my main home computer, I thought I'd be okay. 

Foolish me.

The system has been a brick ever since, able to boot to a glowing screen and no more.  I have lost a day working on this, and I'm no closer to a solution than I was before.  I've sought online help, but so far, no luck,

Very frustrating.

I generally love tech, and I love working in tech, but not today, not since late last night.