System

PC's Name

C:\> hostname

Display environment variables:

C:\> set

PS C:\> Get-ChildItem Env: | ft Key,Value

Getting System Version

PS C:\> Get-WmiObject -Class win32_OperatingSystem | select Version,BuildNumber

Gather system info

C:\> systeminfo

PS C:\> Get-WmiObject -Class Win32_OperatingSystem | select SystemDirectory,BuildNumber,SerialNumber,Version | ft

Checking OS Build Info

PS C:\> [environment]::OSVersion.Version

Checking UAC

# If it's enabled
C:\> REG QUERY HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\ /v EnableLUA
# Checking UAC Prompt Level
C:\> REG QUERY HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\ /v ConsentPromptBehaviorAdmin

Check Computer Description Field

PS C:\> Get-WmiObject -Class Win32_OperatingSystem | select Description