EriktenB

Try setting to defaults then save and exit

If you have a spare hard drive lying around, try to use it temporarily and see if it works

There should be a setting to switch between IDE and AHCI.  Try setting it back to IDE and see if that works.

That did the trick! Thank you so much for helping me out, such a relief ?

How many boot devices does the computer have originally?

Okay so that happened to me as well
What I did is I booted off of the other drive and then copied all the important stuff to the spare one, formatted the drive, reinstalled windows, and finally, I transferred all the files I copied back over to the main drive.
I know its an annoying and long process but that's what I did and it worked for me. Good luck...

Boot from Win10 setup disc or usb and try to enter the OS from there.  It's a possibility Acer might have set it up with UEFI boot, and resetting the bios, removed it. Check bios and see if there are any legacy setting that can be set to UEFI. Change to UEFI, save and exit. Then go back into bios and see if there is something called Windows Boot Manager. If there is, use that to boot.
Installing onto SSD should not get stuck at 37% for 1 hour.

This is what happened with me and a "Craigslist Special" Dell Optiplex. Granted, the rig is one generation older, but it was right at that time period where not everything within the BIOS was UEFI. I had a hell of a time getting Windows installed on an SSD. In fact, when UEFI was actually enabled, the whole "boot priority" section within the BIOS doesn't even do anything. I think this is what might do the trick.
 
OP, if needed, post pics of a ton of settings within the BIOS. No harm!

What happens when you enable "Boot Menu" in this screen?
 

I meant in the bios. I see CSM in the pic, try enabling that and see what happens.

Find secure boot, disable and save. Then enable csm.