Ok so i have 5 desktops i bought for cheap ($30) a piece. None of which have an OS installed but all have Win 7 COA. What would be the cheapest most efficient way to get them all working. Should i create a windows 7 install disk and get one computer working then clone the HDD with the rest? Will the licence still be ACTIVE if i clone them? Or should i start from scratch with every desktop. If they are identical you can clone them - Install Windows without a KEY (will give you a 30 day trial), clone this then enter the correct key on each machine then activate Windows. If they are different you will need to do a clean install on each.Ok thank you! How identical? Identical HARD drives or identical as in all PC specs. And also, do you recommend i create my own windows 7 startup disk? and if your aloud where do you recommend i do this. I am tempted to buy one so i dont have to worry about doing it wrong or getting a bad disc. I renamed your Topic and moved it to a more APPROPRIATE forum. Please don't use "HELP" as a topic / subject. This is a support forum - everyone is asking for help. Thank you.