Useful CMD

#cmd

Reboot into bios §

Restart into bios (need admin)

shutdown /r /fw /f /t 0

Install RSAT §

Enable Windows Update §

Enable Windows AU update in registry and restart Windows Update service (to install RSAT)

REG ADD HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /t REG_DWORD /v UseWUServer /d 0 /f
net stop wuauserv && net start wuauserv

REG Help

REG ADD KeyName [/v ValueName | /ve] [/t type] [/s Separator] [/d Data] [/f]

KeyName     [\\Machine\]FullKey

Machine     Name of remote machine - omitting defaults to the current machine 
            Only HKLM and HKU are available on remote machines
FullKey     ROOTKEY\SubKey ROOTKEY [ HKLM | HKCU | HKCR | HKU | HKCC ] SubKey 
            The full name of a registry key under the selected ROOTKEY
/v          The value name, under the selected Key, to add
/ve         adds an empty value name <no name> for the key
/t          RegKey data types
            [ REG_SZ | REG_MULTI_SZ | REG_DWORD_BIG_ENDIAN | REG_DWORD | 
              REG_BINARY | REG_DWORD_LITTLE_ENDIAN | REG_NONE | REG_EXPAND_SZ ]
            If omitted, REG_SZ is assumed
/s          Specify one character that you use as the separator in your data 
            string for REG_MULTI_SZ. If omitted, use "\0" as the separator
/d          The data to assign to the registry ValueName being added
/f          Force overwriting the existing registry entry without prompt

Install RSAT §

Get-WindowsCapability -Name RSAT* -Online | Add-WindowsCapability –Online