Keyboard + mouse not functioning past BIOS following CPU+MB upgrade

This is NOT the usual problem encountered with an upgrade. I've read previous posts regarding similar (but not identical) issues; this one, for example. My problem is just different enough I felt it warranted it's own post.

BACKGROUND

Upgraded from a previous custom computer built in 2010 following progressively creeping failures. Bit the bullet, ponied up the money, and upgraded the CPU, motherboard, RAM, and power supply (detailed specs at the bottom of post).

Kept the existing GPU as well as the SSD as it has legacy software that I still use regularly but have no way of replacing were the SSD to be reformatted. A clean install of Windows 7, wiping the drive, is NOT an option.

PROBLEM

Successfully installed all hardware. I am able to power on the computer and it POSTs. When it gets to the point where Windows starts to load, it goes to a black and white screen where the options are "Startup Repair" or "Start Windows normally".

If I choose "Start Windows Normally", it attempts to load Windows but then crashes to a BSOD for a split second before going black. I was able to capture the BSOD error message by recording it with my cell phone. If it's felt it's of use, I can type out the message in full. Just let me know.

If I choose "Startup Repair" it loads to the appropriate screen and remains stable. Unfortunately, at this point all input from both the mouse and keyboard is ignored. There is no way to move beyond the initial "Startup Repair" screen at this point. Shortly I will cover in detail what I've already attempted to do to fix the issue (pretty much what all the other posts I've read have suggested; but there's a twist).

I've also attempted to boot from the DVD drive using my original Windows 7 Professional 64-bit disk. I get the same result as "Startup Repair"; as soon as the very first screen appears asking what language to use for the install, it stops accepting input from the mouse and keyboard.

ATTEMPTED SOLUTIONS

The motherboard has two USB 2.0 ports on the rear along with four USB 3.2 Gen 1 and one USB 3.2 Gen 2 ports. The case has two USB ports on the front. It's a Cooler Master case from 2010; I don't know what version of USB but I assume USB 2.0.

Here's where my problem differs from the others I've read about in the other posts. Unlike those other posters where their new motherboard had only USB version 3.x ports, mine actually does have the two USB 2.0 ports on the rear (and likely the front, too). So my problem is NOT that the ports have no driver support from Windows 7 (at least as far as I understand it from reading those other posts stating Windows 7 supports USB 2.0). So it would stand to reason the two USB 2.0 ports on the rear shouldn't have any problem accepting input from the USB mouse and keyboard I've plugged into them. And, yes, the mouse and keyboard do work as evidenced by the ability to navigate my BIOS menu using them.

Yet here I sit unable to use the mouse and keyboard once arriving at any Windows screen. Just to rule out all possibilities, I've plugged the mouse and keyboard into every USB port in every combination possible in conjunction with attempting to boot from the Windows 7 disk as well as the "System Repair" and "Start Windows Normally" options mentioned previously. I've even unplugged/re-plugged them in while at the Windows 7 Install / System Repair screens as some of the posts suggested as a fix; still nothing.

I could revert to my old hardware setup if I have to as a worst-case scenario / last-ditch effort to make changes to my current Windows 7 install - such as installing some additional drivers or whatever - before making another attempt at getting the new hardware setup to work. However, I would prefer to avoid that scenario if possible.

As mentioned previously, though, what is NOT an option is wiping the SDD and starting over from scratch with a new/clean install of Windows 7. I don't have any other HDD, SDD, or other media on which to backup my data. Yes, yes, bad practice; but also water under the bridge in that being chastised about it doesn't get me any closer to a solution to the current problem.

In those other posts, I've read suggestions to use Paragon Adaptive Restore 2010 to fix similar issues. Would that apply to the trouble I'm experiencing? I have a family member with a computer on which I could download and burn to DVD the Paragon Adaptive Restore 2010 app if necessary.

BIOS SETTINGS (I've included those which seem pertinent to this issue)

Boot Option Priorities:
Boot Priority #1 = Pioneer BD-RW optical drive
Boot Priority #2 = WDC WDS100T2BOA-OOSM50 SDD

Boot Configuration:
Fast Boot = Disabled
Boot NumLock State = On

USB Configuration:
USB Device Enable = Enabled
Legacy USB Support = Enabled
XHCI Hand-off = Enabled

CSM (Compatibility Support Module):
Launch CSM = Enabled
Boot Device Control = UEFI and Legacy OPROM

Secure Boot:
OS Type = Other OS (only other choice is "Windows UEFI Mode")

SYSTEM SPECS (Legacy hardware noted where applicable)

OS = Windows 7 Professional 64-bit (already installed on current SDD)

CPU = AMD Ryzen 7 3700X

GPU = ATI Diamond Radeon HD 5850 (Legacy from 2010)

Motherboard = ASUS TUF Gaming B550-Plus, Version: 1202

SSD = Western Digital Blue 3D NAND 1TB Internal SSD - WDS100T2B0A (Legacy from 2018; Windows 7 Professional 64-bit SPK1 already installed)

RAM = Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 Desktop Memory Kit

Power Supply = ASUS TUF Gaming 750W Bronze PSU

Mouse and Keyboard = Cheap USB-cable mouse and keyboard backups reserved for just this type of situation (they worked when I helped a family member through a Windows 10 install when their own wireless mouse and keyboard weren't being recognized). Up until now I've used a wireless Logitech mouse and wireless Microsoft keyboard, but they weren't working for my own hardware upgrade; so I reverted to the cheap, direct-connect backups (which aren't working, either).


Thank you in advance for any assistance anyone can offer. I've been a week now without access to my computer trying to resolve this issue without success. Hopefully someone out there has a solution.

Welcome to the Forum.

New hardware requires drivers that are not on a Win 7 installation drive or on a installed Windows 7.

You can add the drivers to the Win 7 installation files and do a clean install, but as you wrote, clean install of Windows 7, wiping the drive, is NOT an option.

I don't know if you can add the drivers to an existing installation.
Only option I know is to install the SSD back on the old computer and downgrade to Win 10. Once Win 7 has been downgraded to win 10 and is running OK, transfer the SSD to the new hardware.

SIW2 gave you a link to download one of his marvelous tools.
Download and extract the iso to a FAT32 USB drive. Boot it as UEFI.
Run Dism++ and add the drivers to the current installation.

@SIW2 and @Megahertz07,

Thank you both for responding and providing assistance. It's nearly 3AM my time and I only just now was able to get access to a family member's computer to start this process. I'm too tired to continue and don't want to risk making a mess of things due to exhaustion, so I'll give it a try after I get some sleep. Here's what I've done so far, though.

1. I've downloaded 1904v2.iso.

2. I've used Rufus to burn it to a USB flash drive and make it bootable (UEFI).

SIW2 stated:

SIW2 said:

1. Run adjust to new hardware module from booted media

Once I boot from the USB flash drive will there be a GUI from which I choose the "adjust to new hardware" module or is this something that has to be run from a command line?

SIW2 said:

2. Add the drivers from Forum - [Solution] Win 7/Win8.1 x64 Ryzen APU Video driver（Update 2020.12.01 Vulkan/OpenCL API support!） using dism++ from booted media

From that forum post there are two options:

"Pure drivers for mainboards and CPUs:https://yadi.sk/d/lRgibYiEAgHFeg"

"Pure drivers for Ryzen APU Video driver 20.11.3 with CCC:https://yadi.sk/d/nGSr7yaUyAeMFg"

Do I download both driver packages? Once downloaded, do I then extract and copy those driver files to my USB flash drive? In the 1904v2.iso directory I see a sub-folder labeled "Uprograms > Drivers"; is that where I need to copy the driver files? Then I just point DISM++ to that sub-folder to add the drivers to my current Windows 7 install?

Do I need to install everything contained in those folders or just the USB Controller drivers to get my mouse and keyboard working again once windows starts to load?

The post also cautions:

"Before you use the new diriver, use DDU to uninstall the old one."

I've downloaded DDU. However, it appears it needs to be run from within Windows; preferably in Safe Mode according to its documentation. As I can't get into Windows at present, I don't see how I can uninstall my old driver before installing the new one(s). Or is it a step-wise approach:

1. First boot from the USB flash drive.

2. Get the USB Controller drivers installed first so my mouse and keyboard work in Windows again.

3. Enter Windows Safe Mode.

4. Install DDU.

5. Use DDU to uninstall old video drivers.

6. Then install the new video drivers from the download package.

Sorry for all the questions. It just appears to be a cascade of dependencies which - if not followed in the correct order - won't resolve my issue or may even make things worse. I just want to make sure I get it right.