Think of it as a key that allows you to perform operations on a ThinkPad's motherboard that are otherwise locked to the general public, typically reserved for authorized Lenovo service personnel.
Curiously, many versions of this utility require Windows 7 to correctly format the USB drive; running it on Windows 10 may result in "No USB drive found" errors.
If you'd like to share the you are working on, I can help you verify if this is the correct tool or point you towards the official updated version.
Follow the prompts to format your USB drive (standard 4GB/8GB drives work fine). 3. Configuring BIOS for Boot i7tm38us 1.90 version.exe download
: Restart your computer, press F1 to enter the BIOS setup, locate the Security tab, and temporarily disable UEFI BIOS Update Option -> Secure Rollback Prevention . Retry the flash in Windows. System Hangs on a Black Screen After Update
Identify the original equipment manufacturer (OEM). Look for stickers on your device, check System Information in Windows, or search your email/order history for the product name. Then:
: Determine the software or hardware vendor associated with the file. The naming convention suggests it might be related to Intel, given the "i7" part. Think of it as a key that allows
Summary: i7tm38us.exe is a Lenovo-distributed installer/archive for ThinkPad Maintenance Diskette (version 1.90), a DOS-based utility used to write machine type, serial number, UUID and related DMI/SVP data to ThinkPad motherboards (commonly after board swaps or MEC programming). Below is a concise, sourced timeline and usage/compatibility notes gathered from community threads and how‑to guides.
BIOS updates modify the lowest level of software on your computer. Follow these precautions to prevent bricking your system: Prerequisites
Runs in a lightweight FreeDOS or native DOS environment, making it fast and independent of your primary operating system. Follow the prompts to format your USB drive
: Improves stability when connecting to USB-C and Thunderbolt 3/4 docks. 2. Compatible Systems
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Verify if version 1.90 (or package code i7tm38us) matches your available downloads. Click . Method 2: Lenovo Vantage Application
The file is an official executable file used to update the System Program (BIOS/UEFI) on specific Lenovo ThinkPad laptops. System firmware updates are critical for maintaining hardware stability, patching security vulnerabilities, and ensuring compatibility with newer operating systems.