I bought the Mini Tower Desktop PC, Intel Core i7-4770-3.4 GHz, 32GB Ram, 1TB (1000GB) SSD Drive, WiFi, DVD-RW, Windows 10 Pro (Renewed).  The unit shipped had software problems.  The supplier responded to my e.mail promptly; it was shipped back at their expense and I receive another unit 10 days later.  It worked perfectly and I have no complaints (other than I prefer Win7 to the installed Win10 OS).