I have an older PC running vista so decided to take advantage of Microsoft special offer of an upgrade to the new Windows 8 pro for only £25.
The upgrade adviser was first downloaded and told me that I was good to go. After paying online it took me just over 90 minutes to down load the new OS to the desktop over a 2M ADSL connection.. From there I was able to burn the image to an ISO for use in the future.
Microsoft emailed me my own Windows 8 key. The image download also left an Icon on my desktop to allow me to install Windows 8 with the option of keeping all my documents. this took about 30 mins.
I took the option not to log into Microsoft every time I started the PC.
I then had to reinstall all my old applications so make sure that you have the media and the keys before upgrading!
I have been playing with the OS for a few hours and here are the short cuts which seem to do most of what I need.
Win + D to get to a desk top
Win + F to use the search function
Win +R to open command prompt
Win + X to open advanced options
Win + L to lock workstation.
Using these shortcut keys you can soon get under the hood where the basic feel is similar to Windows 7 but with a few tweaks and touches which make things easier to use and looking a lot more sexy.
After all the horror stories of Win8 being the next Windows millennium ( remember that one??) so far it looks ok.