08-07-2011 07:02 PM - edited 08-07-2011 07:03 PM
I wanted to do a clean install of Windows 7 Ultimate x64. I always install windows off my USB drive. The USB flash drive was created using http://wintoflash.com
I press F12 when I first turn on the W520, and boot off the USB
Windows 7 setup loads, I click next, and it says:
"A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB Flash drive, please insert it now"
What drive is missing? Usually Windows 7 let's you install no problem unless some funky non supported drive controller is not supported by default.
I checked out Lenovo's page explaing how to install Windows 7 from scratch and it makes no mention of having to manually load a driver.
Any ideas? Do I need to burn and use a real DVD to install? I never had to in the past before on other machines.
08-07-2011 11:14 PM
You might want to try a more official tool like http://www.microsoftstore.com/store/msstore/html/pbPage.Help_Win7_usbdvd_dwnTool
There are also tools and techniques in the Windows 7 Deployment Toolkit (MDT) that will will build a proper USB stick.
08-07-2011 11:16 PM
I tried my friends USB stick that was manually built with the disk part commands etc. I get the same results with the required drive device driver is missing. What's up with that? I guess I'll try to burn a real DVD and see if it does the same thing.
08-08-2011 07:40 PM
08-08-2011 08:43 PM
I was getting that when I was installing from a usb cd drive. I beleive that it was the USB 3 ports that it didn't like and used one of the two usb 2 ports and it had no problems.
08-18-2011 04:59 PM - edited 08-18-2011 05:00 PM
Well I could never get the USB version of Windows 7 x64 Ultiamte to install on the W520. I tried all usb ports.
The DVD version works, but I'm not sure why the USB version does not. The USB version worked on 2 other non thinkpad laptops recently as well!
08-18-2011 05:43 PM
08-18-2011 05:47 PM
08-18-2011 11:49 PM