Maybe so, Thomas, but in another thread ChrisM correctly identified the drivers I needed and SupportAssist confirmed as Intel Chipset Device Software Driver 101175418066Intel Management Engine Components 19141201255 For me, ignoring the update notification would have been a frustrating mistake.  My issues were multiple, meaning corrupted registry keys. Thanks
Disclaimer:  This solution worked for my XPS 8930 Windows 10 Pro version 1809. Background.  SupportAssist stopped working.  Program notified me an update was available.  The update removed SupportAssist but did not complete the installation. Subsequent attempts simply hanged.  Attempted all suggestions found here and elsewhere on the internet.  Contacted Dell Technical Support via email but their solution was off base.  No joy. Found a Microsoft tool "Fix problems that block programs from being installed or removed" at [URL] What the app does: helps fix problems that:Corrupt registry keys on 64-bit operating systems.Corrupt registry keys that control the update data.Prevent new programs from being installed.Prevent existing programs from being completely uninstalled or updated.Block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel. Downloaded and ran the troubleshooter which found and fixed corrupt registry keys associated with SupportAssist.  Rebooted only for caution sake.  Ran and successfully installed SupportAssist. Ran SupportAssist.  Aborted for unexpected error during hardware test.  BUT, SupportAssist had identified two driver updates.  Applied the updates.  Rebooted.  SupportAssist is now 100% operational and I am once again a happy camper. Hopefully, this Microsoft tool will work for you.
SupportAssist Installation/Update Fix