A instalação do cliente do SEPM no Windows 8 não estava funcionando, no Windows 7 funcionava corretamente, no arquivo de LOG de instalação do SEPM no cliente (%temp%\sep_inst.log) encontrei os seguintes erros:
MSI (s) (C4:6C) [10:30:24:553]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (C4:6C) [10:30:24:554]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (C4:6C) [10:30:24:554]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1
MSI (s) (C4:6C) [10:30:24:567]: Destroying RemoteAPI object.
MSI (s) (C4:34) [10:30:24:567]: Custom Action Manager thread ending.
MSI (c) (34:B0) [10:30:24:568]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1
MSI (c) (34:B0) [10:30:24:569]: MainEngineThread is returning 1603
Verificando o serviço “registro remoto” estava com o status de parada, bastou inicializar que obtive sucesso na instalação do SEPM.