Exchange > 2013
cd $env:exchangeinstallpath\bin
Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON /PrepareAllDomains
Exchage 2013
cd $env:exchangeinstallpath\bin
Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAllDomains
Exchange > 2013
cd $env:exchangeinstallpath\bin
Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON /PrepareAllDomains
Exchage 2013
cd $env:exchangeinstallpath\bin
Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAllDomains