A more in depth look at the use of this file can be found in the Import Scanned Documents article.

Q My business does not have a “corporate” style network, can I use Integrated Scanning?

Or you could disable SMB signing via the registry set both below values to 0 HKEY_LOCAL_MACHINE\SYSTEM\Current Control Set\Services\Lanmanserver\Parameters\Enablesecuritysignature HKEY_LOCAL_MACHINE\SYSTEM\Current Control Set\Services\Lanmanserver\Parameters\Requiresecuritysignature I wanted to give you a 1, but you're advising the user to change the registry first, and mentioning Group Policy as an afterthought.The scanning functionality on my MP171 is not working over my network.All the necessary configurations have been made using the web interface, but it cannot authenticate.Microsoft is conducting an online survey to understand your opinion of the Technet Web site.If you choose to participate, the online survey will be presented to you when you leave the Technet Web site. Use this setting to select whether the machine switches to TWAIN immediately or waits until the standby time elapses when it receives a TWAIN scanning request.Even if the memory device appears to have sufficient free space, data might not be saved if the maximum number of files that can be saved is exceeded. This message might reappear if the machine is operating on a mixed network or if changes were made to network settings during WSD scanning transmission.