I ordered this computer to get a specific model, microprocessor, SSD size, RAM And  operating system (Windows 10). Was disappointed they shipped it with windows 11 which is not  what I wanted.. Contacted the seller and they did furnish instructions on how to return to Windows 10. However, I managed to devise a better  method to get back my original highly configured Windows 10 and now all is well in my private computer land. Very pleased with a computer that will serve me well for several years into the future.