I had an issue with one of my DC's which was my CA. I only have one
Enterprise CA on a single forest single domain AD. Windows 2003 functional
level.
I backed up my CA, Stoped my CA service, backed up the registry
(HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CertSvc\Configuration\"mydomain Root CA")
I then uninstalled CA service, DCpromo demoted the server. Rebooted.
DCpromo - verified that all went well. dcdiag - all good.
I then reinstalled CA, custom. used my backedup certificate. Stopped
service, restored registry key, restored CA from backup and allowed it to
"start service". Here is were it all fell apart. I am getting:
"Microsoft Certificate services - Bad Key, 0x80090003 (-2146893821)"
Event log: Application
Event Type: Error
Event Source: CertSvc
Event Category: None
Event ID: 100
Date: 9/5/2008
Time: 12:05:07 PM
User: N/A
Computer: mydc2
Description:
Certificate Services did not start: Could not load or verify the current CA
certificate. MyDomain Root CA Bad Key. 0x80090003 (-2146893821).
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
I look forward to any advice you can provide.
--
Fredrick A. Zilz
Director IT
InterHealth N.I.