With Windows 8/8.1 The Product Key on preinstalled Operating Systems (HP, Acer, etc) is embedded in the BIOS in the Motherboard, so that the lost and/or worn C.O.A. Sticker problem is no more. When you reinstall it will pick up the Product Key and activate the system automatically. If it does not, follow these steps: "Your organisation activation service" would be a KMS server. A server that is setup in big organizations to mass activate windows and it calls home to Microsoft sometimes otherwise all activations are cancelled. Since you just entered a KMS key (they are generic ones) and did nothing to setup a KMS server Windows has NOTHING to contact. In that case, the Windows install program will first ask you to enter a product key. The Windows 8 product key may or may not work at that point. If you are sure you are installing the correct version of Windows, skip the product key at that point. Then the install program will ask if you want to install Home or Pro. The currently installed key, which is the generic product key used by Windows 10 depending on the edition installed. The Original product key. This can be your Windows 7 or Windows 8 retail or OEM product key before upgrading. This is the product key you want if you encounter product activation issues in Windows 10. Microsoft's free upgrade offer for Windows 10 / 11 ended July 29, 2016. The installation path to obtain the Windows 7 / 8 free upgrade is now removed as well. Upgrades to Windows 11 from Windows The Windows 7 or Windows 8 genuine license your system was previously running is exchanged for a diagnostics key. With Digital License, there is no need to know your product key or purchase another product key if you lose it. Anytime you need to reinstall Windows 10 on the same computer, just proceed to do so using any of the available options. Generic keys (aka: "default keys") for Windows 10 from Microsoft will allow you to install or upgrade to a specific Windows 10 edition you want, but will not activate it. Using a generic key can be helpful if you wanted to install or upgrade to a specific Windows 10 edition for evaluation or testing on a PC or virtual machine, or just don't Windows 10 still activates with old Windows 7 and 8 product keys, if you have no activation and do have a old PC around, try the product key Vay Tiền Nhanh Chỉ Cần Cmnd Nợ Xấu.

does windows 8 product key work for 10