I have already tried:

1. Using DDU in Safe Mode to wipe drivers.

2. Installing the official HP OEM drivers and the AMD Adrenalin drivers (both fail after a restart).

3. Updating the BIOS and Chipset drivers to the latest versions from HP's support site.

4. Disabling Windows Update driver search to prevent overwriting.

The driver sometimes works after 3+ install attempts, but as soon as I restart or power off the laptop, it reverts to Code 43 in Device Manager. I do not currently have tools to open the laptop and reseat the RAM. Is there any other software workaround or known hardware flaw for this model that causes the GPU state to be lost on reboot?