How do I get computer information in PowerShell?

Run Get-ComputerInfo, or query CIM classes such as Win32_OperatingSystem and Win32_Processor with Get-CimInstance.

Why does Get-ComputerInfo show Windows 10 on Windows 11?

WindowsProductName comes from a registry value that was never updated for Windows 11. Check the build number or Win32_OperatingSystem.Caption instead.

Why is Get-ComputerInfo so slow?

It collects all its properties every time. Query the specific CIM class you need for faster results.

How do I get the total RAM with PowerShell?

Use (Get-CimInstance Win32_ComputerSystem).TotalPhysicalMemory / 1GB.

How do I get computer information from a remote PC?

Use Get-CimInstance -ClassName Win32_OperatingSystem -ComputerName PC01 with admin rights on that PC. See Microsoft's Win32_OperatingSystem reference .

Get Computer Information Using PowerShell (Fast Methods)

To get computer information using PowerShell, run Get-ComputerInfo. It returns more than 180 properties about Windows, the hardware and the BIOS. Pick the ones you need with -Property:

$info = Get-ComputerInfo -Property WindowsProductName, OsBuildNumber, OsArchitecture,
    CsNumberOfLogicalProcessors, CsTotalPhysicalMemory

"WindowsProductName: $($info.WindowsProductName)"
"OsBuildNumber:      $($info.OsBuildNumber)"
"OsArchitecture:     $($info.OsArchitecture)"
"Logical CPUs:       $($info.CsNumberOfLogicalProcessors)"
"Memory:             $([math]::Round($info.CsTotalPhysicalMemory / 1GB)) GB"

Output:

WindowsProductName: Windows 10 Enterprise
OsBuildNumber:      26200
OsArchitecture:     64-bit
Logical CPUs:       16
Memory:             16 GB

PowerShell Get-ComputerInfo with selected properties — Get-ComputerInfo returns the product name, build, architecture, CPUs and memory (PowerShell 7)

Notice WindowsProductName says Windows 10 on this Windows 11 PC. It’s a long-standing quirk, and below I show a more reliable way, plus a faster CIM report and remote queries. I tested everything in PowerShell 7.6 and 5.1.

This Tutorial Covers:

Get reliable details with Get-CimInstance

The CIM classes return the real Windows name and give you full control over what you query. This builds a short system report:

$os   = Get-CimInstance -ClassName Win32_OperatingSystem
$cpu  = Get-CimInstance -ClassName Win32_Processor
$disk = Get-CimInstance -ClassName Win32_LogicalDisk -Filter "DeviceID = 'C:'"

"OS:          $($os.Caption) (build $($os.BuildNumber))"
"Last boot:   $($os.LastBootUpTime.ToString('yyyy-MM-dd'))"
"CPU:         $($cpu.NumberOfCores) cores, $($cpu.NumberOfLogicalProcessors) logical processors"
"Memory:      $([math]::Round($os.TotalVisibleMemorySize / 1MB)) GB"
"Drive C:     $([math]::Round($disk.Size / 1GB)) GB, $([math]::Round($disk.FreeSpace / 1GB)) GB free"

Output:

OS:          Microsoft Windows 11 Enterprise (build 26200)
Last boot:   2026-09-23
CPU:         12 cores, 16 logical processors
Memory:      16 GB
Drive C:     953 GB, 351 GB free

PowerShell computer information report with Get-CimInstance — OS, last boot, CPU, memory and drive C: from three CIM classes (Windows PowerShell 5.1)

Build 26200 and a Caption of Windows 11 are the dependable way to tell Windows 11 apart. Getting the Windows version covers more version checks.

For storage details such as Fibre Channel adapter identifiers, see how to find the WWN number in Windows using PowerShell.

Get-ComputerInfo is slow

Get-ComputerInfo collects everything, even when you ask for a few properties. A single CIM query is far faster:

$slow = Measure-Command { Get-ComputerInfo | Out-Null }
$fast = Measure-Command { Get-CimInstance -ClassName Win32_OperatingSystem | Out-Null }

"Get-ComputerInfo:             {0:N1} seconds" -f $slow.TotalSeconds
"Get-CimInstance (one class):  {0:N1} seconds" -f $fast.TotalSeconds

Output:

Get-ComputerInfo:             4.7 seconds
Get-CimInstance (one class):  0.5 seconds

PowerShell Get-ComputerInfo vs Get-CimInstance speed — Get-ComputerInfo takes several seconds, while one CIM query takes a fraction of that (PowerShell 7)

That difference adds up across hundreds of PCs. Use Get-ComputerInfo when you’re exploring, and CIM in scripts.

Useful Get-ComputerInfo properties

Property	What it tells you
OsName, OsBuildNumber	The Windows name and build
OsLastBootUpTime, OsUptime	When Windows started and how long it has run
CsNumberOfLogicalProcessors	Logical CPU count
CsTotalPhysicalMemory	Installed memory in bytes
BiosSMBIOSBIOSVersion	BIOS version
CsDomain, CsPartOfDomain	Domain membership

Run Get-ComputerInfo | Get-Member to see every property. The full output also includes the PC name, user name and serial number, so review it before sharing.

For firmware details, see gett