Список установленных обновлений с датами в Windows

wmic qfe list full /format:htable > hotfixes.html

wmic qfe list full | Select-String "InstalledOn"

$LastDetect = Get-ItemProperty -Path ‘HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\Results\Detect’ -Name LastSuccessTime | select -ExpandProperty LastSuccessTime
$LastInstall = Get-ItemProperty -Path ‘HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\Results\Install’ -Name LastSuccessTime | select -ExpandProperty LastSuccessTime

https://serverfault.com/questions/190690/find-installation-date-of-windows-updates

Включение расширенного логирования DHCP клиента на Windows

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-Dhcp-Client/Operational]
"Enabled"=dword:00000001

PingTest.PS1

PingTest.PS1

$servers = "dc1","dc3","sql1","wds1","ex1"

Foreach($s in $servers)

{

  if(!(Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet))

  {

   "Problem connecting to $s"

   "Flushing DNS"

   ipconfig /flushdns | out-null

   "Registering DNS"

   ipconfig /registerdns | out-null

  "doing a NSLookup for $s"

   nslookup $s

   "Re-pinging $s"

     if(!(Test-Connection -Cn $s -BufferSize 16 -Count 1 -ea 0 -quiet))

      {"Problem still exists in connecting to $s"}

       ELSE {"Resolved problem connecting to $s"} #end if

   } # end if

} # end foreach

https://blogs.technet.microsoft.com/heyscriptingguy/2012/02/24/use-powershell-to-test-connectivity-on-remote-servers/

Работа с Wifi через командную строку

Netsh WLAN show profiles

Netsh WLAN show drivers

Netsh WLAN show wirelesscapabilities

Netsh WLAN show interfaces

Netsh WLAN show profile name="Profile_Name" key=clear

Netsh WLAN set profileparameter name="Profile_Name" connectionmode=manual

Netsh WLAN set profileparameter name=" Profile_Name" connectionmode=auto

Netsh WLAN delete profile name="Profile_Name"

Netsh WLAN export profile key=clear folder="Folder_Path"

Netsh WLAN export profile name="Profile_Name" key=clear folder="Folder_Path"

Netsh WLAN add profile filename="File_Path.XML"

Проверка состояния репликации в домене

repadmin /replsum /bysrc /bydest /sort:delta

Просмотр ролей в домене

Роли  fsmo

netdom query fsmo