Finding installer for windows


I'm building a new pc, which currently have no operating system.
I need an install for windows 8.1, which will allow me to install and try out windows 8.1 without having a operating system previusly installed.
I can transfer it between computers without problems, with both dvd's, usb's and a hdd - I just need the correct installer, but havn't been able to find one.

Thanks for the help :)

Thanks ! :)
Could some1 mark this thread answered?

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