I did the same too, i just upgraded with win 8 on my existing applications intact.
Also, the windows.old itself says that win8 was an upgrade from win 7 which also means that u can verywell go back to win 7 without much fuss as all you need to do is uninstall upgrade from control panel > uninstall programs.
For people who are worried about the time consumption, all it takes is to upgrade on your existing stuff.. Win 8 will ask you to uninstall uncompatible s/w but the rest of it will be intact.
In case you face issue later, all you have to do is refresh OS (again the unique feature of win 8 will help us on soft reset)
Also, the windows.old itself says that win8 was an upgrade from win 7 which also means that u can verywell go back to win 7 without much fuss as all you need to do is uninstall upgrade from control panel > uninstall programs.
For people who are worried about the time consumption, all it takes is to upgrade on your existing stuff.. Win 8 will ask you to uninstall uncompatible s/w but the rest of it will be intact.
In case you face issue later, all you have to do is refresh OS (again the unique feature of win 8 will help us on soft reset)