Windows 10: Can I salvage my computer

So my laptop needed to update BIOS but it said it needed to be connected to power supply and battery needs to be at 10%. Since my battery connection to my motherboard has loooong been busted I found out I could force the firmware driver to update, so it does, it finishes, it updates, it says it’s complete, but doesn’t turn off, I search online and didn’t see anything that said I couldn’t turn it off after it said it was done. Just in case I waited like 10 minutes to make sure nothing happened, but then I powered it off, and now it’s stuck on a screen that says “please install battery charged a

:)

 

Salvage Win10 Home, upgrade to Pro

Hello Great Group,

I am interested in steps I might take to salvage my Windows 10 Home license from a dead computer's drive, then upgrade to Pro on a new computer. Is this possible? If so, how?

Details: 'Puter hanging issue became fatal, then died, I borked the BIOS, made a mess, building a new machine and plan to harvest as much as possible from the old drives. I have a backup of C: where Win10 lived as well as two identical SSDs (both with Win10 on them), yet do not want to boot from one of the old disks fearing that 1) Windows may be corrupted, or 2) The drive might have some nasties on it.

Upgrading from Home to Pro is about $100? cheaper than just buying Pro. So, I'd like to upgrade from the old license if possible, but I'm not sure what steps to take and in what order in order to accomplish this mission.

Are these the correct steps? (I'm guessing)

Build the new computer
Update BIOS if necessary
Install Win10 Pro without key
Attach old drive
Scan old drive with Malwarebytes
Run Belkin Advisor on that drive to reveal key?
Enter key into Pro?

I've no clue what might happen at this point. Key invalid? Upgrade to Pro somehow?

Thanks in advance for your insight.

 

Salvageing Hardware

Can any parts such as memory modules be salvaged for spare parts for a new computer. I am thinking about removing the old memory modules to increase the memory of the new computer. I did this a long time ago, but I forget the details.
One computer is a Dell and the other is a Lenovo.

 

Does this computer build have compatibility problems? Opinions welcomed!

Lets start with what you're going to use this computer for, not what you want to put in it.

Rules/steps to building a computer (in chronological order):
First rule: Determine what your needs are.
Second rule: Define your budget.
Third rule: Pick parts.
Fourth rule: Review parts several times.
Fifth rule: Buy said parts.
Sixth rule: Build it.

You are on rule/step 1. Go through the list until you're done.