: A valid product key is required to activate Windows 8 Pro. If you do not already have one, you typically must purchase a license from an authorized retailer or have it tied to your device's BIOS from a previous installation.
: A specific "Pro with Media Center" version allowed users to play DVDs and manage media content. Minimum System Requirements skachat vindovs 8 pro s kliuchom
: Introduced a tile-based Start screen optimized for touch while maintaining a classic desktop mode. : A valid product key is required to activate Windows 8 Pro
Review of Windows 8 Pro on a Desktop PC - Rashed Talukder's Blog skachat vindovs 8 pro s kliuchom