$w32proc = Get-CimInstance Win32_Processor
$baseclock = $w32proc.MaxClockSpeed

while ($true) {
  #CPU
  $currentclock = (Get-Counter '\Processor Information(_Total)\Actual Frequency').CounterSamples.CookedValue
  $cpu = (Get-Counter '\Processor Information(_Total)\% Processor Utility').CounterSamples.CookedValue * $baseclock / $currentclock

  #RAM
  $w32os = Get-CimInstance Win32_OperatingSystem
  $ramtotal = $w32os.TotalVisibleMemorySize
  $ramfree  = $w32os.FreePhysicalMemory
  $ramused = $ramtotal - $ramfree
  $ramusage = ($ramused / $ramtotal) * 100
  
  #DISK(C:)
  $diskusage = 100 - (Get-Counter '\LogicalDisk(C:)\% Idle Time').CounterSamples.CookedValue

  #NETWORK (Kbps)
  $netsent = ((Get-Counter "\Network Interface(*)\Bytes Sent/sec").CounterSamples |Measure-Object -Property CookedValue -Sum).Sum * 8 / 1000
  $netrecv = ((Get-Counter "\Network Interface(*)\Bytes Received/sec").CounterSamples |Measure-Object -Property CookedValue -Sum).Sum * 8 / 1000

  $outstr = "CPU {0,6:N2}%  RAM {1,6:N2}%  DISK(C:) {2,6:N2}%  NET(S) {3,8:N2} Kbps  NET(R) {4,8:N2} Kbps" -f `
    $cpu, $ramusage, $diskusage, $netsent, $netrecv
  Write-Host "`r$outstr" -NoNewLine
  Start-Sleep -Seconds 3
}