@Reldel1 - Did you try adding MicrosoftEdgeUpdate.exe to ConfigureDefender ASR exlcusions? BTW: I'm also wondering if you have any custom Exploit Guard rule(s) in place in the WSC>App and browser control>Exploit protection>settings>Program settings?
I have added only a couple of rules to allow programs in Exploit Guard, usually not necessary though.
Edge Dev. has been updating without error for months with both Hard Config and Config Defender installed so I imagine Microsoft has changed something again within Edge Dev. Below is a log from Config Defender to show action that blocked update and opening of Edge.
Event[71]:
*****************************************
*****************************************
Date: 2019-09-10 Time: 16:25:19.850
Event ID: 1121
(Blocked by ASR rule)
*****************************************
*****************************************
User Name: NT AUTHORITY\SYSTEM
Computer: StudioXPS8700
Description:
Windows Defender Exploit Guard has blocked an operation that is not allowed by your IT administrator.
For more information please contact your IT administrator.
ID: 01443614-cd74-433a-b99e-2ecdc07bfc25
ConfigureDefender option: Block executable files from running unless they meet a prevalence, age, or trusted list criteria
Detection time: 2019-09-10T20:25:19.849Z
User: StudioXPS8700\Reldel
Path: C:\Program Files (x86)\Microsoft\Edge Dev\Application\msedge.exe
Process Name: C:\Windows\explorer.exe
Security intelligence Version: 1.301.970.0
Engine Version: 1.1.16300.1
Product Version: 4.18.1908.5
Event[70]:
*****************************************
*****************************************
Date: 2019-09-10 Time: 16:25:26.335
Event ID: 1121
(Blocked by ASR rule)
*****************************************
*****************************************
User Name: NT AUTHORITY\SYSTEM
Computer: StudioXPS8700
Description:
Windows Defender Exploit Guard has blocked an operation that is not allowed by your IT administrator.
For more information please contact your IT administrator.
ID: 01443614-cd74-433a-b99e-2ecdc07bfc25
ConfigureDefender option: Block executable files from running unless they meet a prevalence, age, or trusted list criteria
Detection time: 2019-09-10T20:25:26.334Z
User: StudioXPS8700\Reldel
Path: C:\Program Files (x86)\Microsoft\Edge Dev\Application\msedge.exe
Process Name: C:\Windows\System32\RuntimeBroker.exe
Security intelligence Version: 1.301.970.0
Engine Version: 1.1.16300.1
Product Version: 4.18.1908.5