I have formatted my drives and I want to re-install the O/S. When I power up the machine with a disk, the message I get is "Device not found" or "No valid operating system".
1. My boot order has "ATAPI CD0: Model HL-DT-STDVDRAM GT33n-(TS)" as the FIRST device. This device has "No valid operating system" written beside it.
2. I have two disks I am trying to boot from. The first is a Windows 7 boot disk, and second is the BIOS CD that I got from the Lenovo site. My results are the same regardless of which disk is in the DVD drive.
3. I have swapped the DVD-Drive with a co-worker to ensure that it is working correctly. The DVD drive does in fact work.
4. I have checked both disks on my other PC and I have no problems reading them.