What is D3D12-ERROR-NOT-SUPPORTED-OS?
The Windows version does not support DX12 is a critical-severity graphics API (DirectX) issue. DirectX 12 requires a newer build of Windows 10/11. The steps below are ordered to resolve this efficiently.
Common Causes
- Outdated operating system (eg an older build of Win10 or Win7/8)
Step-by-Step Fix Guide
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1
Update Windows to the latest version using the Update Assistant
Update Windows to the latest version using the Update Assistant resolves the majority of D3D12_ERROR_NOT_SUPPORTED_OS cases on its own, making it the logical starting point.
Commands & Diagnostics
winver
Frequently Asked Questions
D3D12-ERROR-NOT-SUPPORTED-OS is most often triggered by outdated operating system (eg an older build of Win10 or Win7/8). Other reports point to driver conflicts and outdated software as contributing factors.
"Update Windows to the latest version using the Update Assistant" clears up most D3D12-ERROR-NOT-SUPPORTED-OS reports by itself. The remaining steps above cover what's left.
D3D12-ERROR-NOT-SUPPORTED-OS is rated critical severity in our database. It's worth acting on quickly rather than letting it recur.
You shouldn't need to. Work through the guide above first — a reinstall is only worth considering if none of those steps help.
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