Having purchased Logitech equipment for over thirty years, when I needed to replace my keyboard, I purchased a Max Key S Plus to go with my MX Master 35. The keyboard connected to my Apple laptop first time, but failed to connect to my Microsoft 11 PC. Therefore, after three hours of trying to connect the keyboard to my PC, including trying various suggestions from online forums, I returned the keyboard back to the retailer. It would seem from the forums that Logitech have a problem with Microsoft bluetooth and for the first time, I purchase an HP not Logitech keyboard. I hope in the future Logitech resolves it Microsoft bluetooth issue.