Original post : Boot Partition - Guide for Windows XP, Vista, 7, 8, 10.
You must run all the steps as an Administrator on your Windows XP PC or as any user that has administrative rights to the system.
select disk x
create partition primary size=SIZE_IN_MB
create partition extended size=SIZE_IN_MB
create partition logical size=SIZE_IN_MB
All the below steps must be performed as an Administrator or as any user with administrative rights to the system.
If you install different versions of Windows, such as Vista and 7, you need to install Windows Vista first. The earliest version of Windows must be installed first on your PC.
You must perform these steps as an Administrator
If you install multiple Windows versions, the first Windows version installed on your PC must be the earliest, e.g. install Windows Vista and then Windows 7 and not the other way around