explorer.exe is a application which is most likely legit. So, if explorer.exe is on your laptop or desktop computer, it is most likely ok, and will NOT cause problems. Even if your system is clean, it is still recommended to purchase a well-known antivirus with a good track record, in order to yourself your system against viruses and malware.
Usually, this application is located in C:\Windows\explorer.exe.
The MD5 checksum for this executable is 8931c71addc9b0944332336b9f4a3505.
This application does NOT run as a Windows service. This is normally a good sign.
This application uses the Internet to communicate. In this day and age this is ok. For example, most of the apps on your PC check for new updates. For this, Internet communications are necessary.
explorer.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This app runs as a 32-bit program. It can not exploit the entire power of modern PC processors. This is quite normal because the authors did not bother to upgrade it to 64-bit code.
The description stored in the program is Windows Explorer.
File version extracted from the file 10.0.14393.0 (rs1_release.160715-1616).
Maker Microsoft Corporation.
Legal copyright notice © Microsoft Corporation. All rights reserved..
explorer.exe appears to have a visible user interface. This is good because it doesn't work in some kind of invisible mode. Its activity is clearly shown to the user.
explorer.exe has a digital signature. Today most serious programs are digitally signed.
The digital signature attached to explorer.exe is valid. This is most likely a clean, ok program.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This executable does NOT have an uninstall routine set up in registry.