none
logical drives
Disk Management
PartitionMagic
logical drives
False.
No. Vista ruins all windows(non-vista) and RAIDed partitions.
no it can also use FAT32 or FAT16
4.
2
Yes Partition Your Hard drive into 2 "partitions" and it will Dual Boot. See: http://www.pcworld.com/article/73826/stepbystep_partition_your_hard_drive.html
You can dual boot anything; as long as they are on different hard drive partitions.
You cannot reformat a hard drive and keep operating system(s) untouched. The point of formatting is to erase all data. There is only one exception, you can reformat some partitions on your hard drive if you have any. If you want to keep your current operating system those partitions must not be system.