Exchange 2010: The registry key “SOFTWARE\Microsoft\ExchangeServer\v14\Transport” does not exist under “HKEY_LOCAL_MACHINE”.

Background: My test lab Exchange environment WAS a single 2010 SP3 CAS/HT and a single mailbox server. Then all hell broke loose (the environment was turned off for 5 months, and the domain decided not to want to live on this planet anymore). Anyway, cutting to the long and the short… Continue reading