Media: Software Operating System: Windows Language: Chinese Number of Discs: 2 Format: DVD-ROM Brand: Microsoft Edition: Home Premium Company: Microsoft (China) Co., Ltd. Packing: 1DVD-ROM (32-bit installation CD media) 1DVD-ROM (64-bit installation disc media) genuine activation key a manual. Technical support: Enjoy and city (Beijing) Information Technology Co., Ltd. has an excellent, comprehensive technology and experienced technical team. In the process of installing and maintaining the client operating system and other software, and our company will provide a full range of services, with the best service, the fastest speed for the customer's operating system software to provide the highest security guarantee stable operation. We will actively carry out the training, so that stability of the system. Remarks: The difference between this product and the color package simple package is two points. One in packaging, color package and simple package products are made simple boxed and white box packaging; when the other aspects of the use, color package does not bind the motherboard, when installed genuine computer system is damaged, our products keys can be used to activate another computer, but simple package bound motherboard, that is, when the computer is installed genuine system is damaged, the software was also damaged.