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# PowerShell: Get BIOS Release Date
- URL: https://www.filipkonopik.com/powershell-get-bios-release-date/
- Published: 2026-07-19T04:11:13.000Z
- Updated: 2026-08-06T05:25:14.000Z
- Author: Filip Konopík
- Tags: BIOS & UEFI

Need to check when the current BIOS/firmware was released - for update planning or hardware age verification? This one-liner pulls the release date straight from the system.

Prerequisites:

- Privileges: None
- Module: Built-in, no import needed

Quick Command:

```Powershell
Get-CimInstance -ClassName Win32_BIOS | Select-Object ReleaseDate
```

Example Output:

```Powershell
ReleaseDate
-----------
1/15/2024 12:00:00 AM
```

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How It Works:

- Get-CimInstance -ClassName Win32\_BIOS queries the Win32\_BIOS WMI class, which stores information about the BIOS/firmware installed on the system.
- ReleaseDate returns the date the BIOS version was released by the manufacturer - useful for checking how outdated the firmware is. Get-CimInstance automatically converts this into a readable local date/time format.

Pro Tip:

On virtual machines, ReleaseDate may come back empty, since virtualized firmware isn't tied to a real manufacturing date the way physical hardware is. If you see an empty result paired with a virtualization company under Manufacturer (like Parallels, VMware, or Hyper-V), that confirms you're looking at a VM rather than physical hardware.