We can increase the width of the Taskbar by keeping the cursor on the top edge of the taskbar and dragging it upwards. This we can do only when the taskbar is not locked. We can know if the taskbar is locked or not by right clicking on the taskbar.
To increase/decrease the size of the taskbar we need to first uncheck ‘Lock the Taskbar’ option otherwise it won’t allow us to do the same.
Selecting ‘Lock the Taskbar’ can be done by modifying registry data base also. The registry value is TaskbarSizeMove under the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced. To lock the taskbar we need to set the value of TaskbarSizeMove to 0 and to unlock it we need to set the value to 1.
The above can be done from command line too by running the following command from command prompt.
To Unlock the taskbar:
Reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v TaskbarSizeMove /t REG_DWORD /d 1 /f
To lock the taskbar:
Reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v TaskbarSizeMove /t REG_DWORD /d 0 /f
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