Attention:
If you lock the taskbar, you will not be able to drag up and down the taskbar, the way to unlock the taskbar is: in the blank space in the taskbar right click, remove the Check "lock taskbar."
Solutions
(Remove all tabs from the toolbar (Language bar, desktop, Quick Launch, etc.)
Just move the mouse over the top line of the taskbar, and the mouse will turn up and down, and the next pull will turn back.
If the above method can not be resolved, may be poisoned, we can do the following to fix the taskbar:
1. Download the system First Aid kit.
2. Click the "Start Repair" button.
3. After the scan is finished, in the left dialog box, select the problem you want to fix.
4. Repair completed, we recommend downloading the world's leading Kaspersky engine can be a total of cattle anti-virus scan.
Finally, we recommend a way to use 360 guards to modify
1. Open "360 guards" in the computer and find "computer aid" in this interface of the search box input "taskbar widening", then click on the search scheme, in the search out of the results page we will see the "Start Task bar widening" solution, we click on can be resolved.