Windows

Enable the developer mode for unsigned drivers

bcdedit.exe /set nointegritychecks ON
bcdedit.exe /set TESTSIGNING ON
bcdedit.exe /set loadoptions DDISABLE_INTEGRITY_CHECKS

Stop service

@ECHO OFF
net stop "1C:<name of service>"
timeout /T 15
taskkill /IM  <name of executable file> /F
exit

Stop MSSQL

@ECHO OFF
net stop SQLSERVERAGENT
net stop MSSQLLAUNCHPAD
net stop MSSQLSERVER

Proxy file (proxy.pac)

function FindProxyForURL(url, host)
{
  if (isPlainHostName(host)) {return "DIRECT";}
  if (shExpMatch(host, "127.0.0.1" )) {return "DIRECT";}
  if (shExpMatch(host, "*/localhost*" )) {return "DIRECT";}
  if (dnsDomainIs(host, ".domain")) {return "DIRECT";}
  if (!isInNet(host, "10.0.192.0", "255.255.240.0")) {return "DIRECT";}
  return "PROXY host:3128";
}

Recovery

SFC

Scan system files

sfc /scannow

DISM

Scan and recovery system files

DISM /Online /Cleanup-Image /RestoreHealth

PowerShell

Test TCP connection to a port

Test-NetConnection -ComputerName host_name -Port port_number -InformationLevel "Detailed"

Route diagnostic

Test-NetConnection -ComputerName host_name -DiagnoseRouting -InformationLevel "Detailed"

Encoding

Change code page

chcp code_page

Problem steps recorder

Run problem steps recorder

win + R
psr

Qwinsta

Show active sessions on remoute host

qwinsta /server:host_name

Registry

Maximum attachment size in outlook HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Preferences

MaximumAttachmentSize DWORD

Sadow copies

Maximum of shadow copies HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VSS\Settings

MaxShadowCopies DWORD

List existing volume shadow copies

vssadmin list shadows

Make symbol link to shadow copy

mklink /d %SystemDrive%\shadow \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy\