HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
    DisableOSUpgrade    REG_DWORD    0x1
    AcceptTrustedPublisherCerts    REG_DWORD    0x1

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU
    AlwaysAutoRebootAtScheduledTime    REG_DWORD    0x1
    AlwaysAutoRebootAtScheduledTimeMinutes    REG_DWORD    0xf
    NoAutoUpdate    REG_DWORD    0x0
    AUOptions    REG_DWORD    0x3
    ScheduledInstallDay    REG_DWORD    0x0
    ScheduledInstallTime    REG_DWORD    0x3