Refer to http://www.novell.com/products/linuxprofessional/sysreqs.html for the system requirements of the most recent SUSE LINUX distribution.

This depends on how many and which packages you want to install. A standard installation with office applications requires about 2 GB. 2.5 GB is recommended if you want space for your own data as well. To install just about everything, you need 3–6 GB, depending on the version.

Partitioning is dividing the hard disk into smaller sections. For the default configuration, SUSE LINUX requires at least two partitions (one for Linux itself and one swap partition for the virtual main memory).

The file system best suited for you highly depends on the scenario in which your system will be run. ReiserFS tends to be best suited for home users, but if you intend to run a high performance server, you might want to use another file system. Refer to File Systems in Linux in the Administration Guide for more information about the file systems supported by SUSE LINUX.

SUSE maintains a list of all packages contained in the current version under http://www.novell.com/products/linuxpackages/professional/index.html. Either enter a package name or use one of the sort methods available. Then view a short description of the package similar to the one you would get in YaST.

With fdisk, delete the Linux partitions. You might need to run fdisk in Linux. Afterwards, boot from the MS-DOS disk and run fdisk /MBR in DOS or Windows.