ok guys, i will now show you pics of my bios setting and where windows installation stucks first. as you can see, on the first pic is where i don't have any mouse pointer with touch pad or even when i plug usb mouse. other 4 pics are bios settings. this is where the problem starts. when i put win8 profile, i have mouse pointer but windows cannot reboot normally during installation. what tha hell is wrong?
Put Generic Flash disk (if that's the usb installmedia) on top: Spoiler As soon as setup does it's first reboot, eject the usb drive or enter bios and set the WesternDigital HDD back on top.
no, nothing is reacting. i can just power off and press novo button to get bios menu. mouse pointer and keyboard only work in win8 profile. should i enable bios downgrade in bios menu and try previous version of bios? could that help?
Just to verify the details..found this at another forum: 1. OS Optimized Defaults - select "Win7 OS". 2. Load Default Settings - Hit Enter 3. Load Optimized Defaults - choose Yes! - this is the key point! 4. Then go to Configuration -> USB Mode - choose USB 2.0 5. Next go to Boot -> Boot Mode - switch to Legacy Support 6. Boot -> Boot Priority - switch to Legacy First 7. Exit -> Exit Saving Changes -> Yes Can you confirm?
yes, as you can see on my bios pics i attached. but there is no option 3. in my bios. it has 1. and 2. then 4-7, except 3.
For the moment I only have one more idea. Retry it exactly with win7 profile until you get again to the first setup screen of the w7 installation and THEN plug in an external USB mouse into a USB2.0 port and try if you can control the pointer (without to switch off the notebook first). Tomorrow I'll have a look at it again...seems to be a picky situation...I have had a look myself, but found no other idea yet.
@Yen i also tried that, puting usb mouse into another usb 2.0 port on that first screen before turning off laptop, nothing happened, same result. everyone, just to let you know that i gave up on installing windows 7 on this laptop. i installed fresh windows 10 enterprise ltsc v1809, installation went without any issues or problems. now i think lenovo bashed windows 7 on purpose with all this problems with installation. i lost almost 3 days for nothing! i sincerely want to thank everyone involved to help me with this. unfortunately, it didn't work, i didn't have more time and patiance to deal with windows 7 installation problems. all the best guys!
To flash an official BIOS comes with the same 'risk' regardless of downgrade or upgrade. From the technical perspective a flash process is just like deleting / writing new bytes to a EEPROM...up / down-grade is a relative perspective. The BIOS image itself and its volumes / modules have checksums. The flasher refuses to flash if a sum should not match... Important is to load and save (again) the optimal defaults after flashing and to re-configure (check) the BIOS setup from scratch.