I have the solutions but it is not the permanent solution to the problem, but it works well. You have to terminate the explore process from Task Manger and rerun it. That's how it works.
Open Task Manager y pressing and holding CTRL+ALT+DEL, then switch to processes tab and find for explorer.exe, point it, and click End Process or press ALT+E. After it is terminated, click File, then New and type explorer, and click OK.