What sticker? Mac's don't come with Windows stickers on them. Mac's don't come with Windows on them either unless you bought the Mac second hand. In that case Windows 7 might have been installed by the seller using BootCamp. If you
did buy a second hand Mac with Windows 7 on it, you need to contact the seller for the product key if he did not give you the dvd case for Windows 7. If he gave you the dvd case then the sticker is on it.
You need to observe announcement 1 at the top of this forum page if Windows is already installed on the Mac.
In order to receive the best support, we request all users initially download and run the Genuine Diagnostics tool (MGADiag.exe) at this link
http://go.microsoft.com/fwlink/?linkid=52012. Click "Continue", click the "Copy" button then “Paste” the report into a reply message in
this thread.
Colin Barnhorst Windows 7 Ultimate x64 on DIY with 6GB ram.