So what's the cheapest option available today? Windows 7 starter licenses? or getting XP ones?
Stupidly all the licenses we've had in the past, we've never stuck the sticker on our PCs to show the license for that one.
EDIT: So how does this work when it comes to replacing PCs entirely? We use OSD like everyone else, so anything already on the machine is obliterated before a user touches it regardless of what is already on it, if that machine was previously covered by a windows license, why should i have to buy another one simply for new hardware? That's like me buying a new windows license at home every time i upgrade my PC....
Well, if you have the £150 home retail version of Windows you can transfer your licence to a new machine. BUT if you PC came with an OEM licence then it's valid for only that hardware and would have to be replaced when the computer was. The OEM license is usually 1/2 the price of a retail one.
However, this specific case (moving the software from one machine to another) hasn't been tested as yet - but a number of copyright and EU law firms have commented to this effect.
The bottom line (as far as Microsoft are concerned) is that if you're buying a Windows PC from someone, they must supply it with a licence. Currently, the price for Windows 8 Pro built onto a PC from the major vendor I deal with is £83 ex VAT RRP, and standard Windows 8 is £57. There is an emerging markets flavour at £43, but the UK doesn't qualify - we're not a third world country yet, despite the state of the roads... Windows 7 is only available as Pro for £88. (And Linux is £2 to cover the cost of the DVD, if Windows isn't your thing)
Where you end up in the smelly stuff is if you buy a PC with no licence and stick Windows on it using your Volume Licence, which is in breach of your licence terms.
As far as transferability of OEM licences and its legality goes, it's a minefield I don't want to cross myself...
Thanks chaps, i understand this now (bar the confusing transfer ability thing everyone else is confused about)
Guess I'd best start going round and checking how many licenses we need then :|