Possible Duplicate:
When reinstalling Windows 7, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter?
I had a question about Windows 7 licenses. Say I use mine, but later on I need to run a system recovery or reinstall the OS, will that same license still be usable, or do I have to purchase a new one? Also, I have an HP laptop. If, after I install Windows 7, I call and ask them for a Windows 7 recovery dsc, would they give me one, or would they refuse since Vista was the default OS?
Thanks for your help!