What is ibmsmbus.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the ibmsmbus.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Ibmsmbus.exe file information

The process known as SMBus Upgrade Service for Windows (version 2K+®) belongs to software SMBus Package (Version (version 4.10), by International Business Machines (

Description: Ibmsmbus.exe is not essential for the Windows OS and causes relatively few problems. Ibmsmbus.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 49,219 bytes (60% of all occurrences) or 28,160 bytes. 
The program is not visible. It is not a Windows core file. The software can be uninstalled in the Control Panel. Therefore the technical security rating is 30% dangerous.

Uninstalling this variant: If problems with CSSMBusDriver or Automatic Server Restart come up, you can uninstall it from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify ibmsmbus.exe related errors

Important: Some malware disguises itself as ibmsmbus.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the ibmsmbus.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving ibmsmbus issues

A clean and tidy computer is the key requirement for avoiding problems with ibmsmbus. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ibmsmbus.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ibmsmbus.exe [all]