As noted, the key you'll be looking for is
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceInstall\Settings.
If you get to
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows and nothing is shown beyond that, right-click on Windows and then choose
New, then
Key. Where it states
New Key #1, name this as
DeviceInstall.
Right-click on DeviceInstall, choose
New, then
Key. Again, this will show as
New Key #1, so name this
Settings.
Follow the instructions again from #3 on the
page I showed you to create the
InstallTimeout value, close Regedit, and then reboot your PC.
Try installing the driver software again.