Systemwide password amnesia (v2004 build 19041.173)

Does this work?

[FIX] Windows 10 2004 forget passwords after every restart - Your Windows Guide (yourwindowsguide.com)

No, this doesn't always work. Two systems we were having issues with were completely different. One local only account and one had MS account login. We attempted both ways and even creating new user accounts on computer and issue still happened. As others posted it appeared to work for a few reboots, but after additional reboots and unspecified time passwords were forgot and requested again.

It seems that we attempt a repair at the end of the day and the next morning the computer is forgetful again. 

Also had an attempt consider renaming the NGC folder

C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\   

Inside that, rename the folder NGC to NGC.old then close the File Explorer.

Other support agent also suggested:

1. Sign out to every account under Word --> Account.
2. Close all the Office apps.
3. Disconnect all accounts under Start menu --> Settings --> Accounts --> Access work or school.
4. Clear all the Microsoft credentials under Start menu --> Control Panel --> Credential Manager --> Windows Credentials.
5. Cleans the computer by going to Start menu --> Disk Cleanup --> Run as administrator --> Check everything --> OK --> Clean.
6. Restart the computer - It might takes more time since the cleaning tool does clean the failed updates.
7. Open any Office app and sign in to the user's account under File --> Account.

None of these helped. They seemed to help when attempted at the end of the day, but next morning users were required to enter OneDrive, Office Account password, and Outlook password. 

Support agent also said the fix should be coming in the 20H2 update, but many insiders that have installed that seem to still be having issues.

I must be more precise. My solution still works this morning (another reboot), except for one thing: Onedrive client still request authentification. 

I realized that I didn't only applied receipe 8, but few of them in sequence. At one moment I realized that some of them where equivalent.

I applied Step 1 first. 

When I tried Step 2 I found nothing to change.

I applied step 3 completely. I found a bit scary to do step 3, playing with rights on system folder is something I didn't like to do.

I looked to Step 4 to find things correct, nothing to change.

I didn't do step 5, I don't understand in what adding a generic credential to windows manager would work. BTW my microsoft account is already there.

I bypassed step 6.  It seemed a way to specify credentials to different sites.

I bypassed step 7 also.

**I did step 8.**I probably tried to close and re-open Edge between the step to see if the problem was gone.  I saw a change only at step 8.

I don't remember if I rebooted my computer in between before step 8.  The problem started to change at step 8. I had to re-enter credential once at next login. Now this is the third reboot, next day, and aside Onedrive client, everything still works. I cross my finger. Take note of the warning in step 8. This will erase all saved passwords that are recorded in Edge. You are better to save it if they are not recorded somewhere else in a password manager.

When you read all the web page I referred to, it seems that it has something to do with some bug that leads to corruption of files in the "Protect" directory. 

I must add that I'm working with 2 factor authentification with both microsoft Authenticator and google authenticator.

The user in my case runs a local account so... But I think other affected customers that my colleagues work with have had Microsoft accounts. The only ones where we up to date have no issues is with customers who are domain attached.

I've seen this workaround before, and also seen people confirming it doesn't work, but thanks anyway.