Get-WmiObject -Class Win32_ComputerSystem | Format-List SMBIOS* sudo dmidecode --version This returns the dmidecode tool version, not SMBIOS. Instead:
Get-WmiObject -Class Win32_BIOS | Select-Object SMBIOSPresent, Version For the exact SMBIOS spec version: smbios version 26
SMBIOS.reflectHost = "TRUE" Or force a specific version: SMBIOS version 2
For virtualized environments, unless you require a legacy OS (Windows 7, Server 2008 R2), you should switch to SMBIOS 3.0 or higher. This enables UEFI boot, Secure Boot, and better power management features. SMBIOS version 2.6 was not just another point release. It arrived at a pivotal time when hardware was transitioning from single-core to multi-core, from DDR2 to DDR3, and from 32-bit to 64-bit everywhere. It gave us accurate core counts, better memory speed reporting, and the stability that Windows 7 and Server 2008 R2 relied upon. Or using PowerShell:
Or using PowerShell: