Open the image in an editor like Microsoft Paint or GIMP. Select "Save As", choose BMP, and explicitly select 24-bit Bitmap . This strips out incompatible modern headers or color profiles that cause parsing errors in basic firmware environments.
Run the installation script or execution tool (often WINUPTP.exe or Flash64.cmd depending on the model generation). lenovo oem logo bmp 120x120
When users navigate to Settings > System > About or open the classic Control Panel System page, Windows displays OEM branding information. The 120x120 BMP is the standard size utilized by Windows to represent the manufacturer icon alongside support hours, phone numbers, and website links. 2. UEFI/BIOS Boot Logo Substitution Open the image in an editor like Microsoft Paint or GIMP
The standard deployment path is: C:\Windows\System32\oemlogo.bmp Step 2: Configure the Registry Press Win + R , type regedit , and press . Run the installation script or execution tool (often WINUPTP
Move your OEMLogo.bmp file directly into C:\Windows\System32\ .
Double-check that your file is exactly 120x120 pixels. Even a single pixel variance (e.g., 121x120) will cause Windows or the BIOS scaling engine to misinterpret the asset layout.
Note: While modern Lenovo UEFI firmware often supports larger formats (like 400x400 JPEGs/GIFs), the 120x120 BMP format remains universally supported across legacy ThinkPad/ThinkCentre models and highly reliable. Using the Lenovo WinFlash / UEFI Update Tool