Hi. My name is***** you for your question and the opportunity to assist.
Can you tell me the procedure used to wipe the drive? Those laptops came with a hidden recovery
partition that allows the re-installation of Windows.
This may work if the recovery partition still exists.
Hold down the power button until the laptop is off (about 4 -5 seconds)
Then, while holding down the Fn and F1 keys,
turn the machine back on.
Let me know the result please.
Thanks. If you used disk wiper there's nothing left on the drive.
What's on the flash drive you're trying to boot from?
Did the laptop originally come with Windows 7 on it?
try Fn + F1
To boot from USB
you have to get in to the BIOS first and make some changes. Since it came with Windows 8, in the Bios, Secure Boot needs
to be turned off/disabled.
Boot mode needs to be changed from UEFI to Legacy or the combo option UEFI/Legacy
and Lenvo is a little different on this,
the entry for "Load OS optimized defaults" needs to be disabled.
See this link: https://support.lenovo.com/us/en/documents/ht081446
If you can get in to the BIOS and make and save those changes, from then on
when you start the laptop and immediately begin pressing the F12 key,
you'll get a boot menu that will allow you to select to boot from USB.
Is there an Exit section in the BIOS?
Look in there for the "Load OS optimized defaults" entry and disable it if it's there.
Since you have Secure Boot disabled, shut the laptop off and plug in the flash drive.
Start it up and begin pressing F12 to see if you get the startup menu that lets you select USB.
Do you have an operating system to install on the laptop?
I'm sure a shop would be glad to sell you one.
The purpose of that software is to make any data on the drive unrecoverable.
How did you wipe the drive? Did you remove the drive and hook it up to another computer and
do it that way?
Do you need to have the laptop in a running condition before handing it off?
I have no doubt the client data is gone. If you have a version of Windows and a valid product key
having a shop do the install looks like the way to go.
But, were you able to get to the startup menu when you turned on the laptop
and began tapping the F12 key?
Now that you can get into the BIOS, take a look at this video.
It's a different model Lenovo but it shows how to change UEFI
and enable USB boot. Your BIOS may not be exactly like
this one but it will be close.