For example, you have a netbook or desktop that you want to install Windows 8 onto, but can’t use DVD or USB for whatever reason (or don't want to, like me). This method will allow you to boot and install Windows directly from the hard drive. This guide involves plugging the hard drive into another working computer, preparing the hard drive, placing it back in the system, and installing Windows as usual.
This was tested with Windows 8 and Windows 8.1. The guide for Windows 7 is exactly the same.
Step 1: Part 1: Preparing the HD with Windows 8 setup files.
- Format the hard drive to NTFS (Quick format works fine; multiple partitions also work).
- Copy the following from your Windows 8 disc or ISO:
Step 2: Part 2: Making the HD bootable
Enter the following commands, (replace X with what applies to your hard drive):
select disk X
select partition X
X:\boot\bootsect.exe /nt60 X:
(See picture for example)
Exit and shutdown.
Note: If you’re working on a 32-bit system, and you want to install 64-bit Windows, you may get problems trying to run the last command (X:\boot\bootsect.exe /nt60 X:).
Use a computer with a 64-bit version of Windows
A little trick that worked for me: If you have a 32-bit Windows 8 disc, you can copy bootsect.exe from that and replace the 64-bit one (boot\bootsect.exe).