The product key will be on a sticker on the case the discs came in. If it came with your computer, they often put the sticker directly on your computer. If you lost your product key, you will have to purchase a new one.
You can find it on the back of your CD case, or on a sticker on the side of your computer.
you use the CD key of your ordinary halo game
No
Not directly no, the "upgrade" CD requires a different key than what is on your laptop (an OEM key), not to mention it will require a previous version of Windows to process the upgrade.
Microsoft has released many Operating systems that do not require a CD key. They simply just release sertain CD's that do not need a CD key.
On a label stuck to your computer or on the information accompanying the Windows 8.1 CD.
Most product registration keys for Windows are printed on the back of the jewel case
If you purchased your computer from a retail store, it will have an authentication sticker on it, which will contain your CD Key. If you purchased Windows Vista as an upgrade, it will be on the envelope which contains the CD.
No, sure won't. You need a Mac key for a Mac version and a Windows key for a Windows version. Programming between Mac and Windows is different.
The "key" is usually placed on the original CD sleeve or sent separately as in an email or other media. The CD key will not be imbedded anywhere on the CD.
Product keys are not tied to specific CDs. As long as they are for the same version and are not blacklisted, any Windows XP product key can be used with any CD.
1) Browse to the CD from inside Windows and click on the setup.exe file or 2) restart the computer and when the prompt says, press any key to run setup from the CD.