Updating Office 365 client with SCCM

Each release of SCCM current branch has been improving how it manages Office 365 clients, and the last couple of versions have improved the user experience the most. The only real issue remaining is that, under certain circumstances, the user will be prompted to reboot once the Office 365 update is complete. This reboot is not actually necessary, however. Here is how to go about setting up SCCM so that it delivers Office 365 updates to users without prompting them for an unnecessary reboot.

For starters, make sure your SCCM environment is syncing Office 365 client updates. To do this open the SCCM console and navigate to Administration > Site Configuration > Sites, select your site and select Configure Site Components > Software Update Point. Click on the Products tab and make sure Office 365 Client is ticked. Click OK to close that dialog and then head over to Software Library > Software Updates > All Software Updates and select Synchronize Software Updates in the ribbon.

Another thing to check is that the Office 365 client agent on users’ machines is configured to be managed by SCCM. You can set this in the Client Settings of SCCM. Go to Administration > Client Settings and click properties on the device settings policy your clients receive. Select Software Updates and ensure that Enable management of the Office 365 Client Agent is set to Yes.


Once that’s had time to process, create an Automatic Deployment Rule to push out the updates each month (or on whatever schedule you prefer). Under Software Updates go to Automatic Deployment Rules and click Create Automatic Deployment Rule. Give it a name, such as Office 365 Monthly Updates, and select the target collection that contains your clients that need updating. Click Next, and Next again and now select the criteria for updates in the ADR.

Select the following options:
Date Released or Revised: Last 1 month
Product: Office 365 Client
Superseded: No
Title: -semi-annual OR -Monthly Channel (Targeted)


Those two items in the Title field (-semi-annual and -Monthly Channel (Targeted)) means exclude any updates with ‘semi-annual’ or ‘Monthly Channel (Targeted)’ in the name. This is because I only want the Monthly Channel updates in my ADR. If you prefer to get the semi-annual updates in yours, do not add that and add ‘-Monthly Channel Version’ to your title instead.

Click Preview to ensure you’re getting what you expect. If not, the updates may not have synchronized yet.


Click Next and select the schedule you want this ADR to evaluate on. Office 365 client updates are released every month (for monthly channel) but not on any particular day, so I have this rule run toward the end of each month to hopefully catch that month’s client update.


Click Next and select when you want these updates to be pushed to users. This will depend on your organisations patching schedules and agreements, however I set both the available time and deadline to As soon as possible. This is because I want these updates to be delivered to users as soon as their SCCM client receives the notification of the update.

On the next screen, this is where you need to select specific options to get what I consider to be the best user experience for the Office 365 client updates. In User notifications select Hide in Software Center and all notifications. Under Deadline behaviour tick Software Update Installation, and under Device restart behaviour tick to suppress updates on both Servers and Workstations.


Okay, time for a tangent to explain how this is beneficial to the Office 365 update user experience. If you select Display in Software Center for the user experience and omit the system restart suppression the user will be notified that new updates are available. If they go to Software Center, find the update and click Install they will be presented with the following dialog:


As it suggests, when they click Install any Office applications they have open will close and the user will think they need to wait for the update to complete before they can continue to work. On top of that, when the update does complete, it will prompt the user to reboot their PC.


The problem is that the user waiting, and rebooting are a waste of their time. Office is able to install updates in the background while the user is working and only actually needs the user to close the apps right at the end of the install to complete the update. Office prompts the user to complete this step by means of a banner that appears in any of the Office apps that the user opens after the update has finished doing what it can. They can then click Update now at their leisure, and because most of the update process has taken place behind the scenes, the users’ downtime is only a few minutes. Office will even re-open the apps the user had open when it is complete!


So, to mitigate this sub-par user experience, the deployment settings for the ADR should be set to Hide in Software Center and all notifications, with the update allowed to install once the deadline is reached and all restarts supressed. From the users’ point of view, they will not see any indication that Office is being updated until they see the banner in their app prompting them to Update now. They can ignore this until a time that suits them, or it can just happen at the end of the day when they shut down their machine and pack up for the day. And better still, no unnecessary restart prompt.

Let’s get back to that ADR, there isn’t much left to do. Click Next and Next again to get to the Deployment Package page. Create a new deployment package (or add to an existing one, if you wish) and click Next. Continue through the ADR wizard, selecting the download location and which languages you wish to download and finally complete the wizard. Select your new ADR and click Run Now in the ribbon to get the Deployment Package and Software Update Group created. Be aware that this will also create the deployment to the client collection you selected at the start of the process, so make sure that’s acceptable! If it’s not, you may wish to change the deployment collection to a collection containing test clients or just your own machine at first to test that the user experience is what you expect it to be.

And that’s it! Office 365 client updates deployed to your users in the best possible way.


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Outlook 2016 slow loading issue

If there is one splash screen I have become sick of staring at over the past few weeks it is the one for Outlook 2016, with those irritating little dots sliding across the screen while Outlook is supposedly “Loading Profile” or “Processing”.


If you, like me, have spent quite a lot of time researching the cause of this problem you will probably have found that quite a lot of things can cause it. You’ve probably scanned and repaired your Outlook Data Files with SCANSPST.exe, created a new profile, repaired your Office 2016 install, opened Outlook in safe mode (or otherwise disabled all of the add-ins), removed any additional mailboxes or shared calendars and any number of other solutions you will find online.

These things probably do help to fix the issue if it is affecting only certain individuals, but what if the problem is affecting everyone in the office who upgrades to Outlook 2016? I had users who had previously been running Outlook 2010 or 2013 and were not seeing any problem with Outlook loading times, with it typically only taking between 10 to 15 seconds to load. But as soon as they were upgraded to Outlook 2016 it would take anywhere from 5 minutes to 15 minutes to load and some people reported times even longer than that.

A small curiosity about this problem was that it only affected the first launch of Outlook after turning on or restarting the machine. A user could close and reopen Outlook as many times as they liked once it had started the first time and it would load within a few seconds. Even more curious was that if a user did not launch Outlook immediately after logging in, but instead waited between 5 to 10 minutes before doing so, it would launch fine. I also found that if the machine was not connected to any network when Outlook was launched it would launch in just a few seconds. Obviously this meant Outlook was in offline mode and wasn’t very useful, but it did suggest that something was going on over the network that was causing Outlook to hang while loading.

To figure out the cause of this issue I started with a vanilla build of Windows 7 installed on a laptop with Office 2016 and connected it to the corporate network. I went through the steps of launching Outlook for the first time and setting up my profile and then proceeded to restart the laptop for the first proper test. The result? Outlook launched in 10 seconds. So it appeared the network on its own was not the cause.

Next I joined the laptop to the domain and left it in the Computers container. I also moved my user account into an OU with blocked inheritance. This meant that I could test with a minimal set of GPOs applied (the ones at the domain level only). I expected that I would have to apply one GPO at a time and test until I identified the GPO that was causing the problem (assuming that it even was a GPO causing the problem). However I did not have to go through that laborious process at all as the problem returned the first time I opened Outlook after adding the machine to the domain. This told me that one of the GPOs applied at the domain level was causing the problem.

That just left identifying which specific setting was causing the problem. Let’s see… a logon legal notice, some Internet Explorer site zoning and… hmm… the DNS suffix search list. Perhaps Outlook is taking ages looking for autodiscover on each of these domains? (Purely hypothesising; it wasn’t that).

As I was fairly sure the cause of the issue wouldn’t be the legal notice or the IE zoning I gave my attention on the DNS suffixes. There where quite a few of them so I thought it would be a good idea to first remove them all to see if the problem persists, and if it didn’t, add them back one at a time until the problem came back. To do this I navigated to the registry key HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\DNSClient, made a note of what was in the SearchList value and then deleted it, leaving the SearchList value empty. I then amended the permissions on the DNSClient key to prevent Windows simply adding the values back in the next time GPOs where processed. To do this I right clicked on the DNSClient key and selected Permissions, clicked on Advanced and unticked Include inheritable permissions from this object’s parent and then in the security notice that comes up I clicked Add. This allowed me to freely change the permission I needed to change. I clicked OK to dismiss the advanced security settings box and in the simple permissions box, clicked on SYSTEM and removed the Full Control permission (leaving it with just Read). Following that I restarted the laptop and opened Outlook to see how long it would take; it took 10 seconds. Bingo.

Next I proceeded to add back one domain at a time to the SearchList registry value, each time restarting the laptop and opening Outlook until I struck on the one domain that was causing Outlook to take an age to load. I then confirmed that was the only domain causing the problem by adding them all back except that one, and once that was proven I added back the troublesome domain to prove that by adding it back, the problem returned. With about 50% of the root cause determined it was time to get Wireshark out and find out exactly why having that domain in the DNS search list was causing Outlook to load slowly.

After restarting the laptop I immediately opened Wireshark to began a trace and then opened Outlook. Once Outlook had finished opening I stopped the trace and started looking through. I noticed at the start of the trace that there where several DNS lookups being made for WPAD on each domain in the DNS search list.

Windows WPAD DNS Lookups

WPAD is the Web Proxy Auto-Discovery Protocol and is used by the WinHTTP Web Proxy Auto-Discovery Service and Internet Explorer to automatically find a proxy server on your network to route Internet traffic through. Windows checks for WPAD entries in each domain on your DNS search list even if you don’t use WPAD to assign a proxy. You may even believe you had WPAD turned off by having Automatically detect settings unticked in your Internet options, however this only turns it off for Internet Explorer. The WinHTTP Web Proxy Auto-Discovery Service still goes looking for them.

Most of the domains did not have a record for WPAD, however legacydomain.com did have a record and therefore wpad.legacydomain.com returned an IP address. This IP address was not assigned to any device (the device having been decommissioned at some point in the past) and this seems to be the key issue here. If no IP address is returned from DNS Windows moves straight on to the next domain, but if an IP address is returned Windows will attempt to route traffic through that IP address for several minutes before it gives up, and it is during this time that your Outlook client is hanging on the splash screen.

In this image you can see that my client attempted to send packets to (the IP returned by wpad.legacydomain.com) several times with approximately 20 seconds between each attempt. The first packet was sent at 09:03:51 and the last packet (which is cropped out of the image below) was sent at 09:08:34 – 4 minutes and 45 seconds later!

Outlook Opening Wireshark Trace

As the network device that was originally assigned to was no longer around I removed the DNS record for WPAD in the legacydomain.com DNS zone and the slow Outlook loading problem went away.

This explains some of the observations made at the beginning of this post regarding Outlook only being slow to load the first time you launch it and Outlook loading quickly if you wait a few minutes after logging on. The issue is not being caused by Outlook, Outlook is merely a victim of Windows’ HTTP proxy service latching on to the IP addresses returned by DNS and spending time trying to route traffic through them. If you wait a few minutes before launching Outlook or close and reopen it during the day the WPAD process has already happened so Outlook hasn’t got to wait for anything.

So if you are experiencing issues with Outlook starting slowly and have already tried everything you can find on the Internet, I would suggest making sure you haven’t got any stale WPAD entries in DNS! It could be a very quick fix for a very frustrating issue.


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Issue downloading Office 365 Click-to-run – Error code 30125-1007 (502)

When trying to download Office 365 Click-to-run one of the steps you have to follow is to configure an XML file with your source path, client edition, channel etc. You also have to specify the language you want to download.

If you try to use a language ID that is not supported in Office 2016 you will get the error 30125-1007 (502):


The fix is to make sure you use one of the supported language IDs from the list at the following link:


Bonus cool stuff: You can create your Office download and configuration XML file using this handy GitHub tool: https://officedev.github.io/Office-IT-Pro-Deployment-Scripts/XmlEditor.html

Update 20/05/2019: Microsoft has retired the GitHub XML configuration tool, they now host an updated version of the tool at https://config.office.com/deploymentsettings.

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