What method are you using? Is the taskbar locked? To find out, click in an empty space on the task bar and uncheck the "lock the taskbar" box.
Have you tried?:
- If the program is already running, right-click the program's button on the taskbar (or drag the button toward the desktop) to open the program’s Jump List, and then click Pin this program to taskbar.
- If the program isn't running, click Start, find the program’s icon, right-click the icon, and then click Pin to Taskbar.
- Also, try dragging the program's shortcut from the desktop or Start menu to the taskbar.
After trying these, are you able to pin?
Microsoft Windows Outreach