It has gone through a thorough and rigorous refurbishing process as well as Quality Control Testing. First we erased all of the previously stored data according to DOD standards. Then we replaced any failing or bad hardware including the hard drive memory and capacitors.SAVE TIME with the freshly installed digital product key for Windows 10 operating system. No more keying in 25 tiny hard to see characters or loading time to activate. It will automatically activate once the license agreement is accepted with the click of a mouse!We are one of the few who are actually MICROSOFT AUTHORIZED to refurbish these machines. Many of the others are just Microsoft REGISTERED. These sellers aren t able to offer the same level of quality. Buy with confidence from the #1 Microsoft Authorized Refurbisher in the United States.Product FeaturesManufacturer/Model: HP Compaq 6200Processor: Intel i5 Quad Core 3.1 GHzMemory Installed: 4GB DDR3Maximum Memory: 32GBMemory Slots: Hard Drive: 250GB SATAOptical Drive: DVD ROMVideo Card: Integrated/On-Board GraphicsMonitor: Not Installed *Please note: Our refurbished monitor brands may vary based on current available stock.Operating System: Genuine Windows 10 Professional 64 BitNetworking / Communication: Network Card-10/100/1000 Wireless Networking-USB WiFi Bluetooth-Not InstalledVideo Input: VGA Port-1 Display Port-1 DVI Video Port-Not Installed HDMI Port-Not InstalledAdditional Ports: USB 2.0-10 USB 3.0-Not Installed Serial Port- Parallel Ports-Not Installed Digital Card Reader-Weight: 16.8Dimensions: Height-3.900 Length-14.900 Width-13.300Product Color: BlackForm Factor: DesktopKeyboard: Not InstalledMouse: Not InstalledProduct Manual: We do not have manuals but they are downloadable from manufactures websiteAdditional Information: Item Condition: Refurbished conditionPackage Contents: HP Compaq 6200 Pre installed Windows 10 Professional 64 Bit power cord(s) keyboard & mouse and Blair quick start guideSku: PC-HP-6200-D-I5QC-32-4-250-DVD-10P-OBV-CR/WIFI