What is onestep.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 onestep.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.

Click to Run a Free Scan for onestep.exe related errors

Onestep.exe file information

Windows Task Manager with onestep
Onestep.exe process in Windows Task Manager

The process known as OneStep Search loader belongs to software OneStep Search or OneStepSearch loader by (

Description: Onestep.exe is not essential for the Windows OS and causes relatively few problems. The onestep.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 3,072 bytes (57% of all occurrences), 3,584 bytes, 5,632 bytes, 4,608 bytes or 5,120 bytes. 
The program has no visible window. Onestep.exe is not a Windows system file. It can change the behavior of other programs or manipulate other programs. Therefore the technical security rating is 66% dangerous.

Uninstalling this variant: In case you experience problems using onestep.exe, you can also safely remove the program using the uninstall program of OneStep Search or OneStepSearch (Control Panel ⇒ Uninstall a Program).

Recommended: Identify onestep.exe related errors

Important: Some malware also uses the file name onestep.exe, for example Win32:Adware-gen [Adw] (detected by Avast), and Adware.OneStep (detected by Symantec). Therefore, you should check the onestep.exe process on your PC to see if it is a threat. If OneStep Search loader has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


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Best practices for resolving onestep issues

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

onestep.exe [all]