Using these methods, you can find out the key of Windows 7, Windows 8, Windows 8.1, Windows 10. Download the rest of the programs to your computer from the official websites of manufacturers. Script with '.vbs' extension and portable free programs(ProduKey, ShowKeyPlus, Free PC Audit) can be downloaded from here. All the listed programs are free, except for AIDA64 and SIW. You can find out the license key of the installed Windows by running a special VBS script, as well as using five programs: ProduKey, ShowKeyPlus, Free PC Audit, Speccy, AIDA64, SIW. In the event of a system reinstall, or for some other reason (for example, activation failed after a hardware failure), the user may need a Windows product key. At the moment, manufacturers of laptops with pre-installed operating systems sew a product key into the BIOS to automatically activate Windows. Laptops used to often have a Windows activation key glued on. To activate the Windows operating system, a product key is used, consisting of 25 characters in the form of numbers and uppercase (upper case) English letters, divided into 5 groups of 5 characters: 'XXXXX-XXXXX-XXXXX-XXXXX-XXXXX'. The Windows product key used to activate the system differs depending on the operating system version (Windows 10, Windows 8, Windows 7, etc.), OS edition (Home, Pro, etc.), distribution method (OEM, Retail etc).

To activate the operating Windows systems a special product license key is used.

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