If you have ever performed a clean installation of Windows on a Lenovo laptop (ThinkPad, IdeaPad, Legion, or Yoga series), you may have noticed something peculiar after the reboot: the generic blue Windows logo or a plain text-based "Loading files" screen instead of the classic, polished Lenovo splash screen. This happens because you wiped the partition containing the Original Equipment Manufacturer (OEM) assets.
The key to restoring that professional look lies in a specific file: a 120x120 pixel Bitmap (BMP) image with a strict color depth limit. lenovo oem logo bmp 120x120
For full compatibility (Windows 7/8/10/11, Lenovo BIOS utility): Test on actual target(s): bootloader, firmware, or device
| Parameter | Requirement | |----------------|------------------------------------| | Dimensions | 120 × 120 pixels | | Bit depth | 24-bit (or 32-bit with alpha if supported) | | Color space | sRGB (no color profile embedded) | | Compression | None (BIOS/Windows won’t load RLE) | | File header | Standard BMP (BITMAPFILEHEADER + BITMAPINFOHEADER) | | Orientation | Bottom‑up (default for BMP) | If you have ever performed a clean installation
⚠️ Avoid: PNG renamed to BMP, indexed color, 16‑bit color, or progressive saving.