[(Error)Add Exclusions for Windows Defender in Windows 10 with reg add.]

Possible, using unattend answer file
RunSynchronousCommand in specialize pass runs under system account and have full access to registry

    <settings pass="specialize">        <component name="Microsoft-Windows-Deployment" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">            <RunSynchronous>                <RunSynchronousCommand wcm:action="add">                    <Path>REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /V "C:\Program Files\Rig\AutoPass.exe" /t REG_DWORD /d 0 /f</Path>                    <Order>1</Order>                    <Description>Registry</Description>                </RunSynchronousCommand>            </RunSynchronous>        </component>    </settings>

[merge .esd files]

It' better to merge them as Install.wim first, then convert it to esd
 
although i doubt the size will drop if merge the two esd files (because of the solid compressed chunks), but you could try it
 
the merge command is the same whether it's wim or esd

dism /Export-Image /SourceImageFile:install.wim /SourceIndex:1 /DestinationImageFile:install2.wimdism /Export-Image /SourceImageFile:install.esd /SourceIndex:1 /DestinationImageFile:install2.esd /compress:recoveryorwimlib-imagex export install.wim all install2.wimwimlib-imagex export install.esd all install2.esd

[win6x_registry_tweak]

Of course you will have 7600 files, SP is an update to the RTM system, not a new system, it doesn't replace all of its components
 

install_wim_tweak /p C:\mount /c Microsoft-Windows-Common-Modem-Drivers-Packagedism /image:C:\Mount /remove-package /packagename:Microsoft-Windows-Common-Modem-Drivers-Package~31bf3856ad364e35~x86~~6.1.7601.17514install_wim_tweak /p C:\mount /h /c Microsoft-Windows-Common-Modem-Drivers-Package

[KB3000850 - BIG update - Windows 8.1.2?]

@ youravinalarrrf

 

your issue looks related to:

wiaek002.inf
0x80070003 - ERROR_PATH_NOT_FOUND

 

you could see this file for details:

windows\inf\setupapi.dev.log

 

if this path or the inf file in it is missing, you need to copy it from another source (like install.wim of your Win8.1 iso)

\Windows\System32\DriverStore\FileRepository\wiaek002.inf_amd64_57f9361b96ceea4b

[[How-To] Create Metro Shortcut]

you can not

i tried it and the shortcut did not work from desktop

[NET 3.5 Offline Installer for Win8]

thanks alot