This is all over the internet so it’s nothing new, but since I had to go to a couple of different places to get the whole picture I am putting it here.
You can install Exchange 2010 Management Tools on Windows 8 by temporarily modifying the registry setting below. Note that the Management Tools need to Exchange 2010 SP2. Exchange 2010 SP3 doesn’t work because it does an organizational check, which had all kinds of failures about the AD Schema and that I wasn’t a member of Enterprise/Schema Admins (even though I am).
Change the registry value HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionCurrentVersion from 6.2 to 6.1 . This change will be reverted upon a restart.
Credit for the registry key value goes to this thread where I originally found it.