smss.exe is a program which is most likely NOT a virus or malware. So, if smss.exe is on your computer, it is most likely ok, and will NOT cause problems. Even if your system is clean, we still advise you to use a good antivirus with a good detection rate, in order to yourself yourself against threats.
Usually, this program is stored in C:\Windows\System32\smss.exe.
The MD5 checksum for this file is 033552768cd4423a981e37a954f4e79e.
This program is NOT a Windows service. This is very good.
smss.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This exe runs in 32-bit mode. It can not benefit of the full power of nowadays' PC processors. This is quite normal because the authors did not bother to upgrade it to 64-bit code.
The description written in the exe is Windows Session Manager.
File version stored as a property 10.0.10586.0 (th2_release.151029-1700).
Company name Microsoft Corporation.
Intellectual property rights notice © Microsoft Corporation. All rights reserved..
smss.exe has a digital signature. Today the large majority of virus-free software applications are digitally signed.
The digital signature found in smss.exe is valid. This is most likely a clean, ok program.
Digitally signed by: Microsoft Windows Publisher
Certificate's issuer name: Microsoft Windows Production PCA 2011
This application does NOT have an uninstall routine set up in registry.