To activate the operating system, follow our guide – How to Activate Windows 10 & MS Office Without Product Key. Note: If you cannot change the option, you need to activate the Windows 10 operating system. This is how you can change the Taskbar color in Windows 10. If you want Windows 10 to pick an accent color automatically, then enable the option ‘Automatically pick an accent color from my background.’ This option will apply the selected colors in the Start menu, taskbar, and action center. Once picked, check the ‘Start, taskbar, and action center’ box.
Now scroll down and pick a Windows color of your choice.
