Subsequently I was able to install W7 Pro 64-bit successfully. Important: If your system is still running Windows 7, your operating system is no longer supported. Set 'OS Optimized Defaults' to 'Other OS'įinally, to be able to proceed beyond the error on 'missing driver for CD/DVD/USB' once the setup has initiated, I put the driver for USB (it only exists for Bay Trail-M architectures, but I have a Haswell (i5-U4210) and included it for safe measure), the Intel Chipset Driver and the Intel Management Driver for W7 64-bit in the root of the bootable USB-device (only the Haswell-version of these). Lenovo Flex 5 16 (512GB SSD, Intel Core i7-1255U, 4.70 GHz, 16GB) Laptop - 82R80002US. It is available for Windows, Mac, iOS, and Android.Set 'xHCI Mode' to 'Disabled' (I had to do this in order to avoid a shutdown loop).o Power on the system and press the F12 key whenever the following. This will show a list of four options choose 'BIOS Setup'. o Insert the Windows 7 install media (either through USB or CD/DVD). Operating System: Pre-Loaded Windows 11 Home with Lifetime Validity MS Office Home and Student 2021 Xbox GamePass Ultimate 3-month subscription.

This guide is broken into a total of 34 steps and will walk you through every part of the Windows 7 clean install process. In order to boot up on an USB in the first place, you need to push the 'Novo button' (in reality a pinhole) on the right side, almost up front. You want to install windows 7 on a new hard drive. I've had the same problem on my Lenovo Flex 2 15 when trying to install Windows 7 (it's shipped with Windows 8.1)!

Lenovo windows 7