Verify the resolution is exactly 120x120. If an image is forced into this container from a different aspect ratio, Windows or the BIOS scaling algorithm will warp the proportions.
Discover the Lenovo OEM logo BMP 120x120, its specifications, uses, and significance in Lenovo's branding and identity. 3.27.231.168 lenovo oem logo bmp 120x120
to see your custom hardware-level branding boot screen. Verify the resolution is exactly 120x120