Windows 7 Dell 755 Dual Core 1.8Ghz DVD 2GB 160GB HDD SFF PC Genuine Microsoft Windows 7 Home Premium Edition - Freshly Installed! Windows 7 Installation / Recovery Disc. Pre-Installed Software - Microsoft Windows 7 Home Premium edition, Open Office & Avast Antivirus. Full 90 day limited warranty. Covering parts and replacement. We ship fast. Your order will normally be shipped within 3 working days after payment is received.