Environment Variables in Windows
%ALLUSERSPROFILE%
C:\ProgramData
%APPDATA%
C:\Users\USERNAME\AppData\Roaming
%COMMONPROGRAMFILES%
C:\Program Files\Common Files
%COMMONPROGRAMFILES(X86)%
C:\Program Files (x86)\Common Files
%COMSPEC%
C:\Windows\System32\cmd.exe
%HOMEDRIVE%
C:\
%HOMEPATH%
C:\Users\USERNAME
%LOCALAPPDATA%
C:\Users\USERNAME\AppData\Local
%LOGONSERVER%
\DOMAIN_LOGON_SERVER
%PATH%
C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem
%PATHEXT%
.com;.exe;.bat;.cmd;.vbs;.vbe;.js;.jse;.wsf;.wsh;.msc
%PROGRAMDATA%
C:\ProgramData
%PROGRAMFILES%
C:\Program Files
%PROGRAMFILES(X86)%
C:\Program Files (x86)
%PROMPT%
$P$G
%SYSTEMDRIVE%
C:
%SYSTEMROOT%
C:\Windows
%TEMP%
C:\Users\USERNAME\AppData\Local\Temp
%TMP%
C:\Users\USERNAME\AppData\Local\Temp
%USERDOMAIN%
Userdomain associated with current user.
%USERDOMAIN_ROAMINGPROFILE%
Userdomain associated with roaming profile.
%USERNAME%
USERNAME
%USERPROFILE%
C:\Users\USERNAME
%WINDIR%
C:\Windows
%PUBLIC%
C:\Users\Public
%PSMODULEPATH%
%SystemRoot%\system32\WindowsPowerShell\v1.0\Modules\
%ONEDRIVE%
C:\Users\USERNAME\OneDrive
%DRIVERDATA%
C:\Windows\System32\Drivers\DriverData
%CD%
Outputs current directory path. (Command Prompt.)
%CMDCMDLINE%
Outputs command line used to launch current Command Prompt session. (Command Prompt.)
%CMDEXTVERSION%
Outputs the number of current command processor extensions. (Command Prompt.)
%COMPUTERNAME%
Outputs the system name.
%DATE%
Outputs current date. (Command Prompt.)
%TIME%
Outputs time. (Command Prompt.)
%ERRORLEVEL%
Outputs the number of defining exit status of previous command. (Command Prompt.)
%PROCESSOR_IDENTIFIER%
Outputs processor identifier.
%PROCESSOR_LEVEL%
Outputs processor level.
%PROCESSOR_REVISION%
Outputs processor revision.
%NUMBER_OF_PROCESSORS%
Outputs the number of physical and virtual cores.
%RANDOM%
Outputs random number from 0 through 32767.
%OS%
Windows_NT