10-22-2017 02:05 PM
Having a similar problem on the Flex 5 to try and get rid of all the crapware on the system, we discovered a new feature in windows that solved the problem for us.
To Note: The Flex 5 WILL NOT boot to usb and no bios setting we could find would allow us to do it. It just kept saying "Boot to USB is not supported by this system"
What was the answer? We found this: https://www.microsoft.com/en-us/software-download/windows10startfresh
Basically, windows defender now has an option where you can pretty much wipe the system of anything except microsoft software. This will also remove any lenovo drivers or pre-installed software, so make sure you have downloaded all your stuff from lenovo onto a USB drive first... just in case things like networking drivers dont autoinstall.
I think for the first time in forever, Microsoft got a +1 in my book for this.