If any of these items are missing, demand that your dealer supply them. From swap meets. When cruising the aisles of your friendly local swap meet, you'll see vendors selling Windows and other programs at shockingly low prices. That software often consists of illegal copies or versions not authorized for retail sale. From online auctions.
Counterfeiters love online auctions.
Downloaded from the Internet. You can also find bootleg copies of Windows and Windows programs on some Usenet newsgroups. From a friend. These days, it seems like everyone has a CD-R drive. If you copy a Windows CD and give it to a friend, you're breaking the law.