Hi Decker18,
Thanks for coming to Apple Support Communities for help today.
The only settings with the taskbar you can control in iTunes can be found here: Change Advanced preferences in iTunes on PC
"To change these preferences, choose Edit > Preferences, then click Advanced"
Regarding the taskbar, this is what can be changed:
"Show iTunes icon in system tray
Display the iTunes icon in the notifications area of the Windows taskbar.
Minimize iTunes window to system tray
Minimize the iTunes window to the notifications area.
This option is only available when you show the iTunes icon in the system tray."
For any other questions involving the Windows taskbar, we'd recommend reaching out to Microsoft Support.
Have a fantastic day!