Windows Update KB4579311 causing explorer to crash repeatedly when logging in.

I uninstalled Halo MCC and that did not fix it, and I also tried disabling the storage service (without uninstalling MCC) which did not fix the issue. However, combining these did fix it as of 12/17/2020 2:00PM (MDT).

Strange, since about 10 days ago I tried disabling storage service and updating again, which did not solve the problem at that time. Something must have changed.

I will try to update to 20H2 and re-install MCC and re-enable storage-service once the 20H2 completes. I may report back here in the future if something interesting happens.

Update 1: I noticed Xbox app was not working but would still launch. I re-enabled storage service to an automatic (delayed) start. The issue with explorer crashing returned. I disabled it again, and now explorer seems fine (in other words, I can use my computer). However, interestingly, the Xbox app says it cannot launch due to some kind of storage error. 

Update 2: After restarting a couple times, the Xbox app no longer shows itself as installed and I get error 0x800706D9 when trying to install it in the Windows Store. But I am happy at least windows works, I was not playing much on the app anyways.

The thing with this error is that i dont have a 16 gb game like halo mcc to crash my pc , i have a 128 + gb game , not so easy to uninstall , can you inform us a least whats the priority number on fixing this bug ?

I'm just going to compile a few of the solutions that worked for people so far mentioned in this thread here:

Possible Solutions:

• Uninstall Halo MCC from the XBOX app (Thank you so much juliangutierrez68!)
• Reinstall Windows (or in-place upgrade)

Possible Workarounds:

Workaround: Disable Storage Service

From Sam De Waegenaere:

1. Create a Windows Task that is triggered by user login:

Program to start: Powershell.exe

Arguments:

-command "Set-Service -Name 'StorSvc' -StartupType Manual"

Execute with highest privileges (aka as Admin)

2. Create a Shortcut on your desktop:

The target program is:

powershell.exe -command "Set-Service -Name 'StorSvc' -StartupType Disabled ; Stop-Computer"

(one line)

Name it like "Shutdown" coz that is what it will do.

Once you created the shortcut open it's properties and make it be executed "as Admin"

What this will do: You click the shortcut. It will disable the Storageservice (StorSvc) and shutdown your computer.

When you start the computer it will enable the StorSvc.

Really good thinking i must admit it . But the way i worked it around is more casual user friendly . On serves tab i made store services to start with delay , cause im fling on Flight sim and i need it .

From a prior explanation, setting it to a delay or manual did not resolve the issue because the OS would start the service immediately after login anyways. Only selecting "disable" was working.

I was having the same problem even did an "in-place upgrade" but the problem persisted. What ended up solving my problem? Uninstalling Halo Master Chief Collection from the Xbox app. Sounds crazy but that ended up fixing the problem after not seeing results with the in-place upgrade. I'm not saying this is the case for everybody but if you have it installed on your pc might give uninstalling it a try.

I also had Halo:MCC installed at the time and haven't re-installed it since I did the in-place upgrade that removed all programs and settings but kept files. I'll be slightly upset if that's what would have fixed it for me, but I'll be even more upset if reinstalling brings back the problem -- I play this at least once a month.

Oh wow, I have Halo MCC too. I am beyond amazed how such a problem can even happen, and from a first party application from Microsoft.