Often times you will run into trouble when Windows Explorer doesn’t respond or stuck for a long time. Windows Explorer should in theory automatically restart itself if it crashes. In the case when it doesn’t there are couples ways you can restart Windows Explorer properly.
The GUI User Friendly Way
Use this method assuming when you can still access the Windows menu.
Press and hold Control + Shift + Right Click on any empty area on the Windows menu, you will see this option to let you “Exit Explorer”
Once this is done, you can go to task manager (by pressing Control + Shift + Esc)
Go under File > New Task (Run…)
Just type in “explorer” into the text filed and press OK.
Now your Windows Explorer should have restarted.
Alternatively you can always kill Windows Explorer from the task manager and go back to repeat the preview two step to re-launch the Windows Explorer again.