Phoenix WinPhlash64 is a specialized BIOS flashing utility that lets you update, backup, and restore your computer’s motherboard firmware directly from Windows.
It works with Phoenix BIOS systems, providing a safe and straightforward way to flash new BIOS versions without booting from DOS.
| WinPhlash64 — Quick Facts | |
|---|---|
| Name | WinPhlash64 |
| Vendor | Phoenix Technologies Ltd. |
| Purpose | Flash, backup, restore Phoenix BIOS/UEFI from 64-bit Windows |
| Architecture | x64 only |
| Supported OS (typical) | Windows 10 (64-bit), Windows 11 (64-bit). Older builds claim Windows 7/8 support but check OEM notes. |
| File type / Size | Executable (.exe), ~1–3 MB (varies by release) |
| Main features | Windows flashing, backup/restore, verify, CLI and GUI support (feature set depends on package) |
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