Many Windows users said they come across the Officec2rclient.exe when opening the Task Manager. And they found this executable file run constantly and taken much of the system resources. Therefore, they want to know what it is and how to deal with it.

Task Manager is a system monitor and startup manager built in every Microsoft Windows system. You can open it easily by pressing Ctrl + Alt + Delete at the same time. In Task Manager, you can take a look at all the processes & services running on your computer and you’re allowed to keep control of them reasonably. (Please let MiniTool help you when you have disk problems or need to recover lost data.)

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Here is the question: many Windows users have asked about the Officec2rclient.exe recently. They come across this process after opening Task Manager and found it took too much system resource (in the most terrible cases, it may take more than 50% of the CPU resources). Because of this, they want to know what is it and whether they can remove it.

Officec2rclient.exe

What Is Officec2rclient.exe

Just by looking at the name, you should know that officec2rclient.exe is an executable file. In fact, it is the software component of Microsoft Office 365 ProPlus designed and released by Microsoft Corporation.

In general, the Officec2rclient.exe is installed on Office 365 subscribers’ computers as a part of the Microsoft Office 365 ClickToRun, which is able to inform them every time the new releases or updates (security-related or not) are out. What’s more, the Officec2rclient.exe is able to change the subscription channel for Office 365 ProPlus users.

If there’s something wrong with this exe file, you may get an error while looking for updates.

Looking for updates error

When does the executable file run?

  • The Officec2rclient.exe will be performed the moment when File|Accounts (backstage)|UpdateNow is selected in any Office app.
  • In addition, you can run it manually by logging in as an administrator.

Is Officec2rclient.exe Safe

In general, the Officec2rclient.exe is a safe Microsoft process. However, it may take up too much system resources and slow down the system sometimes. After all, some malware currently is made to be disguised as trusted processes to avoid detection. Therefore, users are wondering whether it will bring any security threats.

How to determine whether the Officec2rclient.exe on your computer is safe or not?

First of all, you should check the location of the executable file.

  • If it’s under C:\Program Files\microsoft office 15\clientx64\integratedoffice.exe, it tends to be a safe Windows process.
  • If it’s somewhere else, you should suspect that the Officec2rclient.exe is actually a virus.

Then, you should go to check the following directory:

  1. Open Task Manager on your PC.
  2. Select View tab.
  3. Select columns.
  4. Select Image path name.
  5. Add a location column to the Task Manager.
  6. If any suspicious directory is found, you should suspect it’s a virus.

Image Path Name

After that, you should further investigate the file by using Microsoft's Process Explorer.

  1. Launch the problem.
  2. Go to Options to activate Check Legends.
  3. Select View.
  4. Select columns.
  5. Choose to add Verified Signer.
  6. Look at the Verified Signer’s status of the Officec2rclient.exe.
  7. If it’s Unable to Verify, you should look at the process for a while. It may indicates that the process is bad.

Once you can confirm the Officec2rclient.exe is abnormal and dangerous, you should remove it from your computer.

How to Fix Officec2rclient.exe High CPU Usage

How to limit the resource usage of officec2rclient.exe:

  1. Open the Run dialog box by pressing Start + R (or using other ways).
  2. Type cpl into the textbox and click on the OK button below.
  3. Scroll down in the Programs and Features window to look through all the installed applications.
  4. Select Microsoft Office 365 - en-us from the list.
  5. Click on the Change button and wait for a few seconds.
  6. Check Quick Repair in the pop-up window.
  7. Click on the Repair button at the bottom.
  8. Click Repair again and wait for the process to complete.
  9. Restart your computer.

Undeniably, repairing the entire Office installation and uninstalling the Microsoft Office suite are two useful ways to work with the high CPU usage issue. But they both have one big drawback: users will lose all access to their Microsoft Office apps.

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