The main motivation for doing this is curiosity about Win 8, followed by an acceptance that XP is fairly dated now. This is the only XP box I have - the other 2 are Win 7. It is my understanding that for a limited time Win 8 pro can be downloaded to up to 5 PCs for $NZ49.95 from MS. This is by far the cheapest Windows upgrade offer I can remember.
My understanding is that each Windows release performs best if Windows is re-installed from scratch (meaning that a new registry is created and all applications need to be installed again). Are there install options with Win 8 that deliver the performance benefit of an initialised registry without the need to reinstall applications?
I am aware the Win 8 has a new desktop interface and I intend to try it out - but my hardware does not include a touch screen. I am aware of a number of options to get a Win 7 style start bar if needed.
Are there any other pitfalls I should be aware of?