If it happens often, it is a serious problem
How to Fix Windows 10 Explorer Crash
Windows Explorer is one of the essential elements of your system, and if Windows Explorer keeps crashing, you will have difficulty in opening files and folders on your computer. Although occasional crashes may not be a big problem for you, but if Windows Explorer keeps crashing too often, then it is a problem that needs to be seriously investigated.
Unless you know what is causing the problem, you can try some standard solutions and see if they stop Explorer from crashing. There are actually a couple of ways to try and fix it on your Windows computer.
If your computer is running an old version of the operating system, that might be the reason why Windows Explorer keeps crashing on your machine. An older version often has bugs and issues that have been fixed in the newer versions.