Hi markwny153,

Thanks for posting.  Apologies for the confusion around the updates.

While it's pretty normal for a new system to get updates for a few days after you've registered a new operating system, it can become annoying.  There are updates from Dell, updates from Windows, etc.  

It's not recommended, but if you are wanting to turn off the update notifications, here is information you may find helpful:  

1.Click "Start | All Programs | Dell Support Center | Dell Support Center Alerts." The Dell Support Center program window opens.

2.Select "User Settings" and select the "Alerts" tab.
3.Select "Disable" beneath Notification in the Notification Settings section. Dell Support Alerts are automatically disabled.

If the system is under warranty, please contact me privately. Be sure to include your personal information (name, address, telephone, email) and your computer's service tag number in your message. Thanks.

If there is no warranty, then you could contact our Out of Warranty team to get a quote for a paid service call -http://dell.to/1vnT6CQ

Here is information from the Dell Knowledge Base you may find helpful:

Dell Update - Overview and common questions

If the system is under warranty, please contact me privately. Be sure to include your personal information (name, address, telephone, email) and your computer's service tag number in your message. Thanks.

If there is no warranty, then you could contact our Out of Warranty team to get a quote for a paid service call -

Ditto everything markwny153 said (including the absence of Dell Support Center), except my new Dell (XPS 13) is a couple of weeks old. 

Dell Update is not actually updating anything (I'm 100% up to date), yet it continually tells me that it did. 

I'd rather not nuke Dell Update from my system entirely, but will if it keeps lying to me.

It's a bug in the Dell Update program. That's the notification that used to display only after an update installed. Now it shows every reboot.

Does anyone still have a warranty so we can get dell-robert-p to tell the developers to fix the update program? Come on Robert.

I have an XPS 13 9360, out of warranty, so far happily working. I had some problem with the Dell SupportAsssist and the Dell Update in the past, SupportAssit causing too much memory load, Dell Update sometime not loading or sending messages at each restart.

I have uninstalled the SupportAssist, it is resource consuming and, apart from the driver updates, it does what specific Windows tools already better do (e.g. Files cleaning or hardware tests)

The Dell Update is now working fine in my case,  but in the specific version for Windows 10 1607 and higher, which is the version:

 Dell-Update-Application_4985D_WIN_3.0.1_A00_01.EXE , 

Important: Another application, Dell Update Win 32, seems to have issues with the most recent versions of Windows 10 (in my case at least it was sometimes not loading or causing messages at each restart).

My recommendation: 

Uninstall the SupportAssist, Uninstall the Dell-Update, re- start the laptop (new start), install the Dell Update 4985D

I have a Dell XPS that is under warranty.

This is a classic example of tech support silliness. Let us make sure that we have a clear understanding of what the issue is (and preferably are able to reproduce it) before we propose a solution to deactivate notifications.

Here are the symptoms:

1. Every time I restart my Dell XPS 15 I get a notification that "The system has been updated".
2. This happens independent of whether a new update has been deployed or not.
3. It can easily be verified by rebooting the system twice in rapid succession.
4. Dell SupportAsssist shows that 2 updates have been installed (this was a while ago), but that there have been no changes in the last 90 days. No new updates are available.

This leads me to be believe that the Dell support software is incorrectly displaying a notification of an update when no update is happening, or that there is an update that is re-applied every time the system is rebooted.

The correct solution is not to disable notifications. This will just have unintended consequences. It is also not likely that the correct solution is to send the computer in for repair (though this is possible). To me this looks like a software issue (bug) in Dell SupportAssist being able to set the completion state of a software update.

While the bug is not critical, it definitely reduces my confidence in the Dell system management and update process.

I'm experience the exactly same behavior on a XPS 13 9360. The message is really annoying - could please a support agent reply how to fix this problem? or at least that you are aware of this bug?

Disable all notification is NOT a solution - it's a bad workaround.