Why does Intel's posted instructions yield this error when trying to add USB 3 drivers to my Windows 7 64 bootable USB.

[User1583823435889111]

Command line that ran is dism.exe /image:"C:\WIM\MOUNT" /Add-Driver /driver:"C:\WIM\USB30" /ForceUnsigned /recurse

Deployment Image Servicing and Management tool

Version: 6.1.7600.16385

Image Version: 6.1.7600.16385

Searching for driver packages to install...

Found 3 driver package(s) to install.

Installing 1 of 3 - C:\WIM\USB30\x64\iusb3hcs.inf: Error - An error occurred. The driver package could not be installed. 

For more information, check for log files in the <windir>\inf folder of the target image.

Installing 2 of 3 - C:\WIM\USB30\x64\iusb3hub.inf: Error - An error occurred. The driver package could not be installed. 

For more information, check for log files in the <windir>\inf folder of the target image.

Installing 3 of 3 - C:\WIM\USB30\x64\iusb3xhc.inf: Error - An error occurred. The driver package could not be installed. 

For more information, check for log files in the <windir>\inf folder of the target image.

Error: 5

The command completed with errors. For more information, refer to the log file.

The DISM log file can be found at C:\Windows\Logs\DISM\dism.log

[User1583823435889111 · Accepted solution]

The answer is the driver files in the temp working directory need to be unblocked by individually right clicking for properties and then doing so or with some special batch process something or another, this resulted in successful installation of the drivers onto the modified WIMs and stick thereafter.

[AlHill]

Wrong forum, and Windows 7 is dead.

Doc