Hard drive extended partition

[Guest DWade]

I have a hard drive partitioned as follows

80 gig primary 1 Win Xp PRO SP3

40 gig primary 2 Win XP 64 PRO SP2

18 gig primary 3 Linux 64 bit

102 gig secondary 4

the secondary is divided into 3 33 gig partitions for data an 1 2 gig

partiton as a linux swap.

 

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Wins XP PRO and Linux 64 both see all the partitions correctly.

Window xp 64 sees the linux swap partition as primary partition.

At first I thought this was a major problem. But I then found Gpt (GUID

Partitioning)

 

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Yet this is a MBR setup hard drive how is and why is Windows XP 64 seeing

this Extended swap partition as a Primary partition?

 

Win 64 sees the Linux swap partition which is at the end of the secondary

partition as primary partition. At first I thought there was a big problem

until I found out