Thanks for the replies.
I like to check out various distros. I prefer to use a fresh disk to minimise risk. Thus I am experimenting with the 160GB disk to learn how to deal with HP. I created partitions on it in hope that MS would respect them. No such luck.
At the end of the installation, Windows rebooted (for the 6th time) and the First Time stuff, like timezone selection and username, was done. The recovery discs need to be able to deal with replaced failed disks.
The partitioning on the 1T disk, in order as shown by gparted:
200MB sda1 NTFS
450GB sda2 NTFS
500MB sda5 ext4 - logical
450GB sda6 lvm2 - logical
22GB sda3 NTFS - primary
The HP-Tools partition that is on the 160GB disk appears to be missing. Windows Explorer does not show it, even as a folder. However I did not search for it.
I'll have to look into lvm2. Are there partitions within it?
It's quite incredible how Windows has balooned. 3.11 happily resided on a 20MB disk. The current version - who knows since a lot of extra stuff gets loaded - occupies 66GB!