Dual Scan: The Undesirable Windows 10 Update Behaviour

The Windows 10 estate in our environment consists primarily of v1511 and v1607. All new computers (and any being re-imaged) get Windows 10 1607 installed, which is our ‘Production’ build. We have Windows 10 updates deployed to the All Unknown Computers collection which ensures that updates are installed during OSD. This is Windows 10 “Security Updates” and “Critical Updates” only and does NOT include feature updates.

The End User Computing team are yet to green light Windows 10 1703 hence the 1703 feature update has not been approved in the Windows 10 Servicing plans. However, we noticed recently that 2L Engineers click on “Check for updates” AFTER build has completed and not only are there additional updates to install but the Windows 10 1703 feature update get installed too. Now, this is interesting because, like I said, the feature update hasn’t been approved in the Windows 10 servicing plans. (Note, I’m specifically referring to the ‘Check for updates’ button and not the “Check online for updates from Microsoft Update” link.)

Now, I’ve done a lot of testing and reproduced the issue in my lab and confirmed the culprit was Dual Scan. Enabling certain Windows Update for Business (WUfB) group policy settings (or Registry or MDM settings) triggers the Dual Scan behaviour which scans both internal WSUS or SCCM SUP servers as well as Microsoft Update servers for patches and feature updates. Annoyingly, it ignores the local WSUS or SUP servers and gives precedence to Windows Update. This is exactly what was happening in our environment. Consider the following screenshot of WindowsUpdate.log from a newly installed Windows 10 1607 device after having clicked on the Check for updates button and installed the feature update. It confirms Windows 10 is reaching out to Microsoft Update servers:


So what actually triggered the Dual Scan behaviour? Generally speaking, using certain group policy settings related to WUfB enables Dual Scan. Microsoft mentions some of these settings in “Using ConfigMgr With Windows 10 WUfB Deferral Policies”. In our environment we had the Specify intranet Microsoft update service location setting set to our internal SUP server. In “Manage settings for software updates” Microsoft recommends that this setting should not be enabled using Group Policy because the machine policy received from SCCM will populate this setting in the local policy on the client computer and point to the SUP servers. Having the policy set using Group Policy in addition to the local policy being enabled by SCCM causes undesirable side effects, one of which is Dual Scan.

How do we stop this happening? For Windows 10 607 you will need to install the August cumulative update (or better yet KB4039396). For Windows 10 1703 you will need the October cumulative update installed. Then you will need to install the latest Windows 10 1709 administrative templates which includes a setting called “Do not allow update deferral policies to cause scans against Windows update” which will disable the Dual Scan behaviour. It’s important to note that simply updating the administrative templates will not be enough. You need the above cumulative updates/KB’s installed to be able to take advantage of the new group policy setting to disable Dual Scan.

After having taken the above actions in my lab I carried out further testing and found no additional updates, feature updates or otherwise, were available to install after OSD completed, thereby disabling Dual Scan successfully.


Adding Network (and Storage) Drivers to Boot Images in SCCM

Having written a post on Obtaining and Importing Drivers in SCCM for HP Client Devices it seems only fitting to follow it up with a post on adding drivers to boot images in SCCM. So here goes.

For this post I will add the driver for the StarTech USB-C to Gigabit Network Adapter (product id US1GC30B) to my boot image.


Although I have the drivers on a driver CD that came with the adapter I wanted to go ahead and look for a more up-to-date driver. I first had a look on the StarTech website for the drivers which told me a) the original chipset manufacturer (Realtek) and b) the chipset model (RTL8153). Armed with this information I then had a look on the Realtek website an immediately found a more up to date driver (10.13 vs 10.10). As I explained in my previous post, you almost always find the latest drivers from the original chipset manufacturer.

If you already have the driver imported in SCCM

Before going ahead with the step-by-step instructions, if you’ve already got the driver imported into SCCM then all you need to do is to go into the Properties of the boot image and add the drivers in the Drivers tab:


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Configure your Task Sequence to Install Driver Packages for Client Devices

This is a continuation of  my post Obtaining and Importing Drivers in SCCM for HP Client Devices where we obtained drivers for our reference HP EliteBook 820 G3 laptop, imported them into the SCCM database, created a driver package and distributed the package to our Distribution Points.

Before carrying on with the instructions here please make sure you have the exact model name of your laptop as reported by WMI. We covered this under “Get the Correct Model Name of the Client Device” in the previous post. (Run “WMIC csproduct GET name” in a command prompt on your client device and make a note of the model name *exactly* as shown.)

As I explained in the previous post the idea is to configure our task task sequence to only install this driver package for this particular model. That’s where the model name comes into the picture. Any typos in the model name will cause the task sequence to skip this driver package from being installed during OSD.

Instructions for MDT Task Sequence

Locate the “Auto Apply Drivers” step under Post Install and disable it.

Add a group under Post Install called Install Drivers

Add a group under Install Drivers called HP

Under HP add an “Apply Driver Package” step, give it a name and choose the driver package you just created

Check “Do unattended installation of unsigned drivers on versions of Windows where this is allowed”

You should have something like this:


Select the HP group and add the following rules in the Options tab:


Select the HP EliteBook 820 G3 step and add the following rules in the Options tab:


This is where you’ll need the model name of the laptop which we obtained using a WMIC query earlier in the post (under Get the Correct Model Name of the Client Device).

Instructions for SCCM Task Sequence

For your SCCM task sequence locate the “Apply Device Drivers” step and disable it.

Add a group under Post Install called Install Drivers

Add a group under Install Drivers called HP

Under HP add an “Apply Driver Package” step, give it a name and choose the driver package you just created

Check “Do unattended installation of unsigned drivers on versions of Windows where this is allowed”

You should have something like this:


Select the HP group and add the following rules in the Options tab:

Add an If statement and choose Any

Add the following WMI Queries

SELECT * FROM Win32_ComputerSystem WHERE Manufacturer LIKE “HP”
SELECT * FROM Win32_ComputerSystem WHERE Manufacturer LIKE “Hewlett Packard%”

Select the HP EliteBook 820 G3 step and add the following rules in the Options tab:

SELECT * FROM Win32_ComputerSystem WHERE Model LIKE “HP EliteBook 820 G3”

Test your Task Sequence

At this point you’ve got everything set up. Go head and test your task sequence. Hopefully you won’t have any  exclamation marks in Device Manager.


Obtaining and Importing Drivers in SCCM for HP Client Devices

I quickly found while using the HP Client Integration Kit that, though the tool makes it easy to download and import drivers, the size of the resulting drivers and packages is excessively big. Using the HP EliteBook 820 G3 as an example device, when using the HP CIK the resulting size of the drivers is 2.3GB for this laptop compared to 823MB using the method I’ll describe in this post.

In this post we will:

  • Obtain the drivers for our device
  • Import the drivers into SCCM and create a driver package
  • Configure a task sequence to install the driver package
  • Set rules in the task sequence to only install this driver package on HP EliteBook 820 G3 laptops

I will assume you already have a Task Sequence created to build your Windows computer.

Obtaining the Drivers

I use the 820 G3 as an example here but you can adapt this for any make and model. This is a hands-on method of obtaining drivers which does take a little time but I’ve found this gives me the best result during OSD and less driver bloat.

1) Install HP Support Assistant and install any driver updates on your client device

2) Install Intel Driver Update Utility and install any updated drivers, if available

3) (Optional) Install drivers from third party manufacturers.

This step is more manual so will take some time which is why I’ve marked it as optional. This is preferable if you want to make sure you want to start off with the latest drivers for your devices in your SCCM database.

Open up Device Manager and identify devices from third party manufacturers like Broadcom, AMD, Realtek, etc. Go to each of their website and check if there’s a more recent driver available and install them.

4) Backup your installed drivers using Double Driver.

Double Driver basically scans your current system, identifies your device drivers and backs them up for you which you can then use with SCCM. I’ve been using Double Driver for a few years now but didn’t think of using this with SCCM until very recently.

Download the portable tool and run it on your client device. Click on Backup > Scan Current System and wait for the tool to identify your device drivers.

Here is a screenshot of the drivers identified on the HP EliteBook 820 G3:


Click on “Backup Now” and choose a destination to store your drivers. Make sure you leave the “Structured folder (default)” selected. Click on OK


Keep the resulting backup drivers handy to be imported into your SCCM database

Get the Correct Model Name of the Client Device

Further along in this post we’ll create a driver package for our drivers which we’ll then use in our task sequence. We’ll need to create a rule in our task sequence to only install this driver package for this particular computer model. For this reason we’ll need to extract the correct model name of this device at this stage using the following WMI query in an elevated command prompt:

WMIC csproduct GET name


Make a note of the result exactly as shown and keep it safe. We’ll need it further along in the post.

Create Source Folders for your Device Drivers and Driver Package

Note that before importing the drivers you need a source folder for your device drivers and a separate folder for your driver package. I always stress the importance of organising the SCCM software repository with a clear and easily identifiable folder structure to better manage your packages (or drivers in this case). Create a folder structure for your client device driver management similar to below:

Source folder for device drivers:

\\sccmserver\Source\OSD\Drivers\Device Drivers\HP\Windows 10 x64\EliteBook 820 G3

Source folder for driver packages:

\\sccmserver\Source\OSD\Drivers\Driver Packages HP\Windows 10 x64\EliteBook 820 G3

2) Copy the drivers you backed up using Double Driver into the source folder for device drivers similar to above.

Import the Drivers in SCCM and Create a Driver Package

1) Open up the SCCM console and select the Software Library workspace. Expand Operating Systems and select Drivers. Click on “Import Driver” in the ribbon

2) In the Import New Driver Wizard leave the first option selected and enter or browse to the UNC path where you copied your device drivers. In my case it’s \\sccmserver\Source\OSD\Drivers\Device Drivers\HP\Windows 10 x64\EliteBook 820 G3

Under “Specify the option for duplicate drivers” choose


3) Driver Details page:

Uncheck “Hide drivers that are not in a storage or network class (for boot images)”

Uncheck “Hide drivers that are not digitally signed”

Check “Enable these drivers and allow computers to install them”

Click on Categories and either select an existing category to add these drivers to or create a new category.


4) In the Add Drivers to Packages step we’ll create a new driver package HP EliteBook 820 G3

For the name of the package I suggest you enter a name which identifies the model of the computer and the OS and architecture the driver package is intended for.

Something like HP EliteBook 820 G3 – Windows 10 x64

Under “Path” enter or browse to the source folder you created for the driver package. In my case it’s \\sccmserver\Source\OSD\Drivers\Driver Packages HP\Windows 10 x64\EliteBook 820 G3

Finish the rest of the wizard without making any changes to the defaults (do not add any drivers to any boot images when asked).

Distribute the Driver Package to your Distribution Points

Go ahead and distribute the driver package to your DPs.

You may also want to create a folder structure in your SCCM console under Driver Packages and move your package to it. Something like Driver Packages\Windows 10 x64

Configure your Task Sequence to Install the Driver Package

I noticed this post is quite long so I’ve split it into two and moved this section into it’s own post titled Configure your Task Sequence to Install the Driver Package. You can continue with the rest of the instructions over there.


SCCM: Preparing for the Windows 10 Anniversary Update

You’ll find there’s a little bit of pre-preparation work that needs to be done to get SCCM Current Branch ready for the Windows 10 Anniversary Update. I spent the weekend doing this myself on my SCCM 1602 lab and thought somebody might find it helpful to have it documented here.

To be clear, this isn’t a how-to post but more of an informational one. What follows is a set of tasks that need to be carried out on SCCM 1602 along with links to downloads and further information for each task.

1) First things first, upgrade SCCM CB to 1606. (Upgrading from 1511 to 1606 pretty much works exactly the same as upgrading from 1602 as described by Prajwal Desai in his blog).

2) After upgrading you need to install hotfix KB3184153 from the Updates and Servicing node to fix an issue with compliance policy rules in version 1606. If you switched to the fast ring to upgrade to 1606 you’ll also have KB3180992 to install.

3) Install KB3159706 on your SCCM 1606 SUP Servers to “enable the provisioning of decryption keys in WSUS for Windows Server 2012 and 2012 R2. This update is necessary for WSUS to be able to natively decrypt the encrypted Windows 10 Anniversary Update packages, and any subsequent Windows 10 feature upgrades”. Don’t forget to carry out the manual steps described on the support page.

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SCCM Hotfix Stuck on “Prerequisite Check Passed”

Note: This process will also work if your 1606 update is stuck on “Prerequisite check passed”.

I had to fix a little problem before I could upgrade my SCCM CB to 1606 – the “Configuration Manager 1602 Hotfix (KB3155482)” update pack was stuck on “Prerequisite check passed” while the option to install the hotfix was greyed out. Annoyingly the 1606 update was also greyed out, so I couldn’t proceed without first dealing with the problematic hotfix.


I had a recent backup to fall back on but I opted to tackle the problem head on. Here’s how I done it…

  • I found the folder the update pack was downloaded into and made a note of the folder name (which had a random set of characters, referred to as the package guid)
  • Deleted the record of the package with the above guid from the SCCM database
  • Refreshed the view in the Update and Servicing node and restarted the SMS_EXECUTE service
  • The update pack was then downloaded again in the Update and Servicing node
  • I then proceeded with the installation as normal

Detailed instructions below:

In my case the Hotfix update pack was already downloaded which was located in a folder in the “SCCM Install Location\EasySetupPayload” directory: Continue reading

Deploying Box for Office Integration using SCCM – Part 1

This is likely something that’ll be rolled out in our organisation soon which is why I wanted to try this out in my lab beforehand.

We’ll start off with a high level overview of how I plan to meet the pre-requisites for this application and then proceed to implementing that in SCCM. This will probably be a pretty long post so I won’t be providing step by step instructions. Part 2 will cover creating the Box for Office Integration application, setting the application dependencies and testing our deployment.

Let’s take a look at the Box for Office integration pre-requisites:

Now, let’s take a look at how we plan on meeting these prerequisites for the deployment:

  • We’ll create three device collections to identify computers with office 2010 or higher, each limited to Windows 7, Windows 8.1 and Windows 10 computer collections respectively. This will allow us to deploy the application to one collection at a time. Each collection will only contain computers with Windows 7 or higher AND Office 2010 or higher.
  • We can safely disregard the Windows Installer requirement since the installer version is greater than 4.5 on all our operating systems in our collections by default
  • We’ll create separate applications for the .NET Framework 4.0 and the Visual Studio 2010 Tools for Office Runtime in SCCM. For each application we’ll set the detection rule to check for the presence of specific registry keys/values in order to detect if the application is installed or not.

This will effectively meet all the prerequisites and we can proceed with deploying the application in Part 2. Now, let’s get onto implementing this in SCCM.

1) Create the Collections to Deploy the Application To

We’ll start off by creating separate device collections for Windows 7, Windows 8.1 and Windows 10 computers. We’ll then create three collections with Office 2010 or higher installed and limit each to the Windows 7, Windows 8.1 and Windows 10 device collections respectively.

a) Create a device collection each for Windows 7, Windows 8.1 and Windows 10:


The WQL queries to use for each OS version is provided below:

Windows 7 Continue reading