Is Windows 10 Pro pre-installed on the 500GB HDD, and does it come with any additional software or applications?

Windows 10 Pro is included with the product.

Does the Intel NUC NUC5I3RYHS come with a warranty, and if so, how long is the warranty period?

Yes, the Intel NUC NUC5I3RYHS comes with a 1 Year Manufacturer warranty from Velztorm.

Questions & Answers: Intel NUC NUC5I3RYHS Home and Business Desktop White (Intel i3-5005U 2-Core, 4GB RAM, 500GB HDD (2.5), Intel HD 5500, Wifi, Bluetooth, 4xUSB 3.0, 1x Mini HDMIxHDMI, 1 mini Display Port, Win 10 Pro)

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Intel NUC NUC5I3RYHS Home and Business Desktop White (Intel i3-5005U 2-Core, 4GB RAM, 500GB HDD (2.5), Intel HD 5500, Wifi, Bluetooth, 4xUSB 3.0, 1x Mini HDMIxHDMI, 1 mini Display Port, Win 10 Pro)

5th Gen Intel Core i3-5005U Processor 2.00GHz Processor (, 3MB Cache, 2-Cores) ; Intel HD 5500 Integrated Graphics
4GB DDR3 SODIMM RAM; 802.11ac Wifi, Bluetooth 5.0, Ethernet LAN (RJ-45)
65W Power Supply; White Color
500GB HDD; 4 USB 3.0, 1 Mini HDMI, 1 mini Display Port, Headphone/Microphone Combo Jack.
Windows 10 Pro, 1 Year Manufacturer warranty from Velztorm (Professionally upgraded by Velztorm)

$534^.57 –