Running the executable on your primary Windows system does not modify your current computer. It simply extracts the target operating payload. Double-click i7tm38us.exe . Complete the extraction wizard prompts.
Select (or equivalent option for your device) when prompted. i7tm38us 1.90 version.exe download
For most modern BIOS updates, including the latest for Windows 10/11, refer to the official Lenovo Support site for official BIOS Update Utility (Windows) for Windows 10 (64-bit) tools. Running the executable on your primary Windows system
| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | “This version is not compatible with your system” | You have the wrong architecture (x86 vs x64) or wrong hardware revision. | Download the correct file using your exact device model number. | | “CRC check failed” | The file is corrupted. | Re-download from the original source. Do not use a download manager. | | “Access denied” | User Account Control (UAC) or permission issue. | Right-click > Run as Administrator. Disable antivirus temporarily. | | “Cannot find required hardware” | The driver/firmware is for a device not present (e.g., a docking station you unplugged). | Connect the required hardware or reinstall the original driver. | Complete the extraction wizard prompts
suggests this is a mature release—not the first version (which might be 1.0) but also not the latest (which could be 2.5 or 3.0). It is likely a stable, feature-complete update from around 2015–2018.