Plus several advanced things to try
Fix File Explorer Not Responding Issue in Windows 10
Windows Explorer has a long history of stability issues, and the rebranding of "File Explorer" in recent Windows iterations has done little to improve matters. As a result, it's not uncommon to encounter random freezes and crashes with accompanying error messages such as "Windows Explorer is not responding" and "Windows Explorer has stopped working" when interacting with the file system on a PC.
Most complications with Windows Explorer or File Explorer are one-time occurrences that only appear when the operating system is under pressure. But if you experience the same problem repeatedly, you can resolve it with the troubleshooting tips below.
Restarting Windows Explorer (the underlying process behind File Explorer) is a quick fix for minor system problems that cause the program to hang or crash.