You will need
- - Internet;
- - Microsoft Product Key Finder.
Open the browser and in the search bar, type the name of the utility that will help in this problem - Microsoft Product Key Finder. You can find on the website download.cnet.com. Download the program into the computer's memory. Don't forget that the system programs must be in the same drive where the operating system of the computer.
Launch the utility by double-clicking the left mouse button or by selecting the installer and pressing the enter key on the keyboard. The program window is quite convenient, with no extra buttons and unnecessary information. Click on the Find Key with the left mouse button. Typically, the program displays the information immediately. This is the name of the operating system, its version, date and time of installation, the serial number and the data user or organization that registered the product.
Record and save the information. If you reinstall the operating system, you will need to re-enter the serial number and get it when you destroyed the system and lost the license sticker is impossible. Typically, such data shall be stored at least in two copies, as the cases are different. First save a copy on a flash drive, and the second on the drive that hide somewhere.
Do not try to activate this code on several computers simultaneously. Microsoft provides verification of compliance equipment is already registered serial number. Otherwise, you will have to call support to register the product. It is also worth noting that these actions constitute a violation of the company rules, so don't do it. The operating system to another computer can be purchased on the official website of the company or in specialized stores.