If this does not work - or you see the error message even though you have nowhere near 10 devices - you can try the same fix as for error 0x803F7003.
Start by paying a visit to the device management page at and remove any devices you are no longer using. If you want to install apps and games from the Store on another Windows 10 device, remove a device from the device list. It looks like you've reached your device limit for installing apps and games from the Store on your Windows 10 device. The error message itself is quite helpful: Considering the fact that Windows 10 is free, there's no reason not to install it on every computer you own and it is at this point that you may encounter Windows 10's 10-computer limit - down from 81 in Windows 8.1. The first is that you genuinely have exceeded the number of devices on which you can install apps. There are two possible causes for this error.
