Cannot install window 7 because of 0.0MB unallocated disk space

[ItsTheWolf]

Hello.

My friend has a Lenovo G480 laptop.
She tried installing windows 7 on it, but for some reasons it couldn't detect any drives, so I installed a storage driver. After the installation finished, it shows Disk 1 Unallocated Space with Total Size of 0.0MB.
Here are all the steps I've done:
1. Boot laptop up with Window 7 Disc
2. Follow the installation steps to the "Where do you want to install Windows?" screen with no drive
3. Did a little Googling, went to BIOS and changed SATA controller method from Compatible to AHCI
4. Redid step 1 and 2, no good
5. Did more Googling, downloaded a storage driver from this site: Download AHCI: Intel(R) Rapid Storage Technology Driver for Intel(R) NUC
6. Unzipped content, put them in a USB
7. Redid step 1 and 2 with the USB plugged in
8. Load driver, scanned USB, then installed the only compatible driver for it
9. After installation finished, showed "Where do you want to install Windows?" screen with Disk 1 Unallocated Space with Total Size of 0.0MB

And sorry about there's no images. Can't upload them for some reasons.

Any help would be appreciated.
Thank you.

 

[ItsTheWolf]

Nevermind, she's gonna bring her laptop to the store and get it fixed

 

[Megahertz07]

For W7, you must first change BIOS settings:
- Disable secure boot (or on OS type set to Other)
- Enable CSM (Compatible system mode) and set boot to UEFI

Boot the Win 7 installation disk as UEFI (important)
Go to Install - Advanced - Delete all partitions and proceed.

 

[JordanMihailov]

As Megahertz07 said make new partiitons and try like that.