Windows tray icon to set the EFI BootNext option. Binaries and an optional MSI installer can be downloaded here.

Running automatically on login:

1. Open Task Scheduler.
2. Press Create Task.
3. Name the task bootnext (or whatever you want to call it).
4. Check Run only when user is logged on, and choose your user.
5. Check Run with highest privileges.
6. Under Triggers, press New..., choose At log on, then tick Specific user and choose your user.
7. Under Actions, add bootnext.exe (or whatever you downloaded/built it as).
8. Under Conditions untick Start the task only when the computer is on AC power.
9. Under Settings, untick Stop the task if it runs longer than:.

Alternatively, you can create the task automatically by running bootnext /install from a command prompt as an administrator. To remove it, run bootnext /uninstall.

The MSI installer will create the scheduled task automatically.