Bought Windows?

Having bought a legal Windows and moved abroad, you can suddenly become a pirate.

www.microsoft.com/howtotell/geo
Microsoft offers additional versions of Windows and Office that meet regional requirements. These versions can be supplied and used only within the geographical areas indicated on the packaging. This page contains information about regional versions of Microsoft software products, as well as instructions describing how to inform Microsoft about potential cases of piracy and how to acquire genuine Microsoft software.