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Windows 7 install hanging up

Ken90630

Golden Member
Hi, All,

I'm trying to fix a laptop for a friend of mine. It's a new Toshiba Satellite laptop. The model # is S875-S7376. When she ordered it online, it said it came with Windows 7. When she received it, it had Windows 8 on it (only).

She called Best Buy, and they shipped her a Windows 7 Home Premium Disc and told her to set up a new partition and install Win 7 on that. This is where I come in.

I repartitioned the C Drive with no problems. I created a 400GB partition for Windows 7, which shows as healthy in Disk Management. It is marked as active.

When I install Win 7 on that partition, however, it gets 95% of the way done and then hangs. It stays at the "Starting Windows" screen for hours and won't go any further. When I hard-power-down and reboot, I get a black screen with the option to press F8 for further information about why Windows 7 won't boot up. I then get a message that says, "The O.S. couldn't be loaded because a required file is missing or contains errors." The missing file is, apparently, Windows\System32\winload.efi. I've checked the Win 7 CD, and there isn't a scratch on it.

I disabled Secure Boot in the BIOS prior to installing Win 7. I've reformatted the new partition and tried the install again, to no avail. The Windows 8 O.S. boots up fine and works great.

I'm baffled here -- anyone have any ideas? I'm wondering if it has something to do with UEFI? (Which I admittedly don't fully understand.)
 
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Use diskpart from the command prompt or Windows Disk Management to delete the partition you created for windows 7. Just leave the space unallocated, reboot and run the installation DVD again. When you get to the install Windows screen select the Advanced install option, select the unallocated space to install to, click Next to begin the install and the Windows installer will automatically partition and format prior to copying files.


Edit: If the BIOS is configured for Windows 8 in UEFI mode, rather than AHCI mode, then you'll need to install Windows 7 in UEFI mode. Access the BIOS boot menu and your DVD drive should show two entries; AHCI (DVD drive model), and UEFI (DVD drive model). Boot the DVD drive in UEFI mode which creates a GPT (AHCI creates a MBR).


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