It seems that a hard drive is limited to 4 primary partitions, so if the 4 primary partitions are
- Recovery data,
- Windows 7,
- Windows 7 64-bit
and no more primary partition can be added and so no more OS can be installed?
Since an extended partition can install Windows 7 too, so what about just have 1 primary partition subdivided into 10 extended partitions, and so we can install many OS'es on it.
For example, if the machine comes with 1 primary for OS and 1 primary for recovery, then create 1 more primary and then 10 extended for data or for future OS installation.
Are there OS that cannot be installed on an extended partition? What about speed, would there be any noticeable slow down if an OS is in an extended partition?