$freemem = Get-WmiObject -Class Win32_OperatingSystem
# Display free memory on PC/Server
"Computername : {0}" -f $freemem.csname
"Free Memory : {0} MB ({1} GB)" -f ([math]::round($freemem.FreePhysicalMemory / 1024, 2)), ([math]::round(($freemem.FreePhysicalMemory / 1024 / 1024), 2))
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