Click it and Cortana will disappear from the taskbar. You can hide the Cortana Search Bar by right-clicking the taskbar and clicking on the option for ‘Search.’ From here, you’ll see the ‘Hidden’ option. With the theme and taskbar color set up, you might want a few more tips on how to personalize your desktop on Windows 10. Close the Registry Editor and restart the File Explorer.Double-click “Auto Colorization”, then change the Value Data to “1”.Navigate to HKEY_CURRENT_USER\Control Panel\Desktop and select “Desktop directory,” not expanding it.Navigate to: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize folder, and double-click “Color Prevalence”, then change the Value Data field to “1”.Then, type “regedit” in the “Open” box and click “OK”. Type “regedit” in the search box of the taskbar and click “Registry Editor” or select “Start” > ”Run”. To set a background image, simply right-click on any image from your files and select “Set as a background”. Below is a guide on how to make Windows 10 select the accent color automatically to complement the background. Personalizing Windows 10 without activation is slightly more complicated, but possible through the Registry Editor. How to Change the Windows 10 Taskbar Color Without Activation