Install Windows 7 without 100MB partition
At the first setup screen (Language, Keyboard, etc.) press SHIFT+F10. This will open a command prompt window. Type "C:\" then Enter. Use the following commands.
- Diskpart
- List disk
- select disk 0
- clean
- create partition primary size=60000
(this creates a partition of 60GB in size. To skip, just leave off "size=60000")
- select partition 1
- active
- format fs=ntfs quick (optional)
Now continue with the install. When you get to the partition screen, highlight the partition you just created and click Next. Windows will install to the partition you created and not create the 100MB boot partition. Instead, you will see a C:\Boot folder when the install is finished.