No boot after extending partition

Based on your Diskpart, List volume screenshot if that still applies
1) a letter has been assigned to PQSERVICE (volume 3) which is the hidden factory recovery partition. It shouldn't have a letter assigned. What if anything has been placed in there I don't know.
2) You have no volume 2 which should probably be your 100MB system reserved
3) Volume 1 has a blank info field. Where is system and boot?

Volume 2 should be system and volume 1 should be boot.

list partition may provide a little bit more information.

I think the system is in enough of a mess that your option to wait for a backup drive then clean install is the way ahead.

You can copy your files to external, DVD, CD or another computer via cross-over or ethernet cable setting up an ad-hoc home network to another computer.

Can you see the files and access them using the Copy method posted?

If so, then you do have an installation to repair. If it is not showing up in Repair console, click through to open a Command line to run bootrec.exe /fixboot and bootrec.exe /fixmbr to see if it will goose WinRe to show the installation to run 3 Startup Repairs.

Just to confirm you did run from the PW CD Disk tab Rebuild MBR which is not the same as fix boot?

OKAY, so in PW I decided to "resize" the buggy partition to it's logical size. After doing this, and then designating the rest of the space as Unallocated, the computer booted! So I have backed up my data, and am clean installing everything.

Thanks, all!