Used HP small form factor desktop computer system with CPU, Keyboard, Mouse, Monitor and wi-fi chip if needed. All parts are used and sold as is but everything functions properly at the present time. The system has Linux Mint Cinnamon 22.3 installed as the operating system. Mint cinnamon works like an improved version of Windows 7, so if you liked 7 you will like this, it is very like windows 7 in look and operation. There are 100s of youtube videos on linux mint and several will be suggested. I will spend an hour or so getting you acquainted with the linux system. You must have wi-fi or ethernet to use the system on line. 30 day return if unsatisfied. Your Windows data files (documents folders) can be copied to flash drive and then copied to linux mint without change. The file structure and access remains the same.
The cpu chip is an intel i5xxxx 3.0 gig cpu with 16 gig ram, 500gb hdd, 10 USB 2.0 ports, VGA and display video ports, ps2 keyboard and ps2 mouse ports, RJ45 ethernet port, audio ports front and back, DVD, and serial port. I do not know if the serial port works. Located near Unser and Montano in Albuquerque. The case is 15.25 deep, 14.25 wide, and 4 high and can be operated flat or on the side. With display port adaptor can run two monitors at the same time with different pictures. The Linux mint OS comes with 4 'desktops' installed and you can hotkey between them to keep your desktop display from getting too many windows open at the same time.
Mint comes with Libre Office installed, a Windows Office replacement that is 95%+ compatible and opens and processes Office files. There is a learning curve because the tool locations in the headers are placed differently. The Fox-fire browser is installed, other browsers are available, and your other access on line is unchanged. Other mail systems can be handled by Thunderbird mail or another of the mail systems in the large application library. Adding and removing applications is easy with no special knowledge required and thousands are available in the library. I have converted to Mint from Windows 11 and I find how I work with my computer day to day is little changed. Watch the videos to get an idea of how Mint works. This is not a gaming system.