What is w32main2.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 w32main2.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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W32main2.exe file information

The process known as OSP Windows (version 32-bit ESD API) belongs to software IBM Standard Software Installer by IBM Global Services (

Description: W32main2.exe is not essential for the Windows OS and causes relatively few problems. The w32main2.exe file is located in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 260,608 bytes (20% of all occurrences), 262,144 bytes, 268,288 bytes, 272,896 bytes or 222,720 bytes. 
The software is loaded during the Windows boot process (see Registry key: MACHINE\Run). The w32main2.exe file is not a Windows system file. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Recommended: Identify w32main2.exe related errors

Important: Some malware camouflages itself as w32main2.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the w32main2.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.


User Comments

c:\sdwork, frequent updates

Summary: Average user rating of w32main2.exe: based on 1 vote with 1 user comment. One user thinks w32main2.exe is essential for Windows or an installed application.

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Best practices for resolving w32main2 issues

A clean and tidy computer is the key requirement for avoiding problems with w32main2. 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 w32main2.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

w32main2.exe [all]