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| Problem | Fix | |-----------------------------|------| | Logo not showing in BIOS | Ensure exact 120×120, 24‑bit, no compression, filename in 8.3 format ( LENOVO.BMP ). | | Windows ignores oemlogo.bmp | Check oeminfo.ini encoding = ANSI, path = C:\Windows\System32 . | | Colors look wrong / inverted | BMP bottom‑up orientation – some tools write top‑down. Use Paint or ImageMagick -define bmp:format=bmp3 . | | BIOS tool rejects file | Use Lenovo’s own LogoBuilder (if available for your model). |
Legacy environment loaders do not possess the decoding libraries required to read modern compression formats like PNG, WebP, or JPEG. BMP provides an uncompressed, raw pixel map that the system can read instantly.
To function correctly within Windows, the logo must adhere to strict technical requirements: Dimensions : The standard size is exactly 120x120 pixels lenovo oem logo bmp 120x120
Since you need a specific resolution and file format, the easiest way is to use an AI image generator (like DALL-E, Midjourney, or Bing Image Creator) and then convert the file.
: Ensure the image is saved as 24-bit. 8-bit (indexed color) or 16-bit BMP formats often fail to render in pre-boot environments. Use Paint or ImageMagick -define bmp:format=bmp3
If the OEMInformation key does not exist, right-click CurrentVersion , select New > Key , and name it OEMInformation .
Edit or create the Registry/INI settings to point to this file. The logo will then appear in the Control Panel > System For BIOS/UEFI Boot Logo To replace the startup splash screen: Lenovo UEFI Boot Logo Changer - GitHub BMP provides an uncompressed, raw pixel map that
Windows explicitly required the .BMP (Bitmap) format.
draw.text((30, 50), "Lenovo", fill="white", font=font)