KB5005102 broke my dc's. they are booting only in dsrm mode. what to do?

Christopher Low Kin Siong 52 Reputation points Microsoft External Staff
2021-08-28T08:57:20.58+00:00

KB5005102 was the last change/reboot done.

the servers go into the troubleshooting screen and will not boot into safe mode or last known good configuration

other none dc servers show different errors
a) server manager requires one of the following versions of the .net framework v4.0.30319
b) hyper v host is broken

dism /online /disable-feature /featurename:netfx4
dism /online /disable-feature /featurename:server-gui-mgmt
reboot
dism /online /enable-feature /featurename:netfx4 /all
dism /online /enable-feature /all /featurename:server-gui-mgmt
Install-WindowsFeature -Name Hyper-V -ComputerName xxxxxx -IncludeManagementTools

---so for about 8 non dc servers. that works---

for my 2 dcs, they are now stuck in a windows troubleshooting screen. cannot enter safe mode. cannot enter last known good configuration. can boot into DSRM.

right now, I am running dism /online /cleanup-image /restorehealth

what else can I do to get out of this nightmare.

Windows for business | Windows Server | User experience | Other
Answer accepted by question author
Anonymous
2021-08-28T12:06:12.27+00:00

May need to restore from a known good backup of a domain controller. The seize roles (if necessary)
https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/transfer-or-seize-fsmo-roles-in-ad-ds

then perform cleanup
https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/ad-ds-metadata-cleanup
https://techcommunity.microsoft.com/t5/itops-talk-blog/step-by-step-manually-removing-a-domain-controller-server/ba-p/280564

then rebuild the others from scratch.

--please don't forget to upvote and Accept as answer if the reply is helpful--

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