Strange behaviour of twin OS.

[petersmart]

I have an odd question.

A little while ago I installed both XP Pro and Windows 7 on on of my computers in order to see how it worked.

It's OK and both OSs work fine - at startup I simply choose which system to use.

But there is one oddity - not anything that causes a problem but an oddity which I can't replicate on a friend's computer who asked me to install 2 OSs on his computer.

I partioned my HD into 3 sections - one for XP, one for Win 7 and one for Data.

XP was installed on the C drive, Win 7 on the D drive and Data on the E drive.

The oddity is that when I use XP or Win 7 they BOTH show that they are on the C drive with the other OS on the D drive.

This is very handy as I can simply install all programs to the C drive (whichever OS I am using) without having to change the destination to the D drive.

I partitioned the D and E drive as logical drives in an extended partition with the C drive as the primary partition.

The problem is that I can't replicate this on my friend's computer - his XP remains on the C drive and his win 7 remains on the D drive - they don't transpose as they do on mine.

Does anyone have any idea how I managed to do this and how I can replicate it?

.

 

[neil_g]

you can change the drive letters if that helps?

i imagine (without really looking in to it, havent had a coffee yet) the primary partition on the hard drive is probably referenced as C:. why this hasnt happened on your friends machine, maybe the partitions are set up different?

edit - or even the other way around. argh need caffine.

 

[petersmart]

you can change the drive letters if that helps?

i imagine (without really looking in to it, havent had a coffee yet) the primary partition on the hard drive is probably referenced as C:. why this hasnt happened on your friends machine, maybe the partitions are set up different?

edit - or even the other way around. argh need caffine.

The primary partition is referenced as C, whichever OS is running.

If I run XP that is C and if I run Win 7 that becomes C.

When I set it up XP was on the primary partition (C) and Win 7 on the D drive which was a logical drive in an extended partition.

I assumed that was how they would stay whichever OS was running.

I have set the partitions on my friend's computer the same way.

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