What Is Cefsharp.Browsersubprocess.Exe? Is It A Virus Or Malware?

What Is Cefsharp.Browsersubprocess.Exe Is It A Virus Or Malware

Are you wondering what CefSharp.BrowserSubprocess.exe is and if it’s a virus or malware?

You’re not alone.

We just solved this issue for one of our clients yesterday and boy, was he relieved! 

This executable is commonly found on computers, but many don’t know what it does or whether it’s safe.

Key Takeaways

  • CefSharp.BrowserSubprocess.exe is a background process used for web-based applications.
  • It belongs to the CefSharp.BrowserSubprocess process developed by CefSharp Authors and ensures proper functioning of associated applications.
  • While it is a legitimate file, it can be misused by malicious actors, so verifying its location and digital signature is important.
  • Troubleshooting issues may involve fixing high CPU usage, updating the application, and checking the file location.


Cefsharp.browsersubprocess.exe is a process that runs in the background of your Windows operating system and is used for web-based applications that use Chromium Embedded Framework (CEF). It provides an execution environment for these apps to run in, which allows them to access your computer’s resources such as RAM, CPU, and other hardware components.

While it isn’t considered malicious software, it can still cause problems if not managed properly.

Fortunately, this process doesn’t usually impact your system performance and is generally safe to keep running on your computer as long as you regularly update the applications using CEF.

What Is CefSharp.BrowserSubprocess.exe?

It is an executable file associated with certain programs and devices on your PC.

This includes the Razer Cortex, Razer Synapse, and AOL Desktop Gold software suites. It belongs to the CefSharp.BrowserSubprocess process, which was developed by CefSharp Authors developers. 

The purpose of this program is to ensure that these applications run properly on your computer system.

The following points highlight why it’s important to be aware of this file:

  • Security: Despite being a legitimate application, malicious individuals may attempt to disguise their malware as CefSharp.BrowserSubprocess in order to gain access to your machine or compromise its security.
  • Performance: If too many instances of CefSharp.BrowserSubprocess are running at once, it can affect the performance of other programs.
  • Compatibility: As it’s specific to certain programs or devices, you’ll need CefSharp if you plan on using them successfully on your PC.

Overall, it’s essential for users who rely on these applications or services to understand what CefSharp is and how it works in order to effectively protect their systems from potential threats while also ensuring optimal performance levels when using them.

Is CefSharp.BrowserSubprocess.exe a Virus or Malware?

It’s important to determine if CefSharp.BrowserSubprocess.exe is a virus or malware to protect your system from potential threats.

While it is a legitimate file, it can be misused by malicious actors and may disguise itself using similar names.

Therefore, it’s crucial to verify the location and digital signature of the file for authenticity before taking any further steps with this file on your computer.

Scanning your computer with reliable antivirus or anti-malware software like Malwarebytes Free can help detect and remove any malicious files that are posing as it on your system.

Keeping such tools regularly updated will also ensure maximum protection against new threats, so be sure to check for updates often!

Should You Remove CefSharp.BrowserSubprocess.exe?

It is a legitimate component of the CEF framework, usually located in the installation directory of the application that uses it, and is required for proper functioning of applications.

To ensure its integrity, there are a few steps you can take:

  • Check its file location to make sure it’s not in an unusual place; for example, outside of the installation folder.
  • Verify its digital signature, ensuring it’s from a trusted source. If there is no signature or the publisher is unknown, it may indicate a potential threat.
  • Scan your system with reputable anti-malware software like Malwarebytes Free to detect any malicious files.

How to Fix CefSharp.BrowserSubprocess.exe High CPU Issue?

The first is to end any related processes.

To do this, open your Task Manager and locate any related processes. Right-click on them and choose ‘End task’.

 Search for the CefSharp.BrowserSubprocess.exe file in your computer and delete it if found.

This should help reduce your CPU usage significantly!

1. End All CefSharp.BrowserSubprocess.exe -Related Processes

You can end the process by right-clicking it in Task Manager and selecting ‘End Task’.

Here’s how:

  1. Right-click the Start menu and select Task Manager from the context menu.
  2. Locate and right-click on CefSharp.BrowserSubprocess.exe from the list of processes, then select End Task from the pop-up menu.
  3. To disable any background processes, go to the Startup tab and find CefSharp BrowserSubprocess – right-click it and select the Disabled option from the dropdown list.
  4. If necessary, restart your computer for changes to take effect. This will ensure that no further disruptions will be caused by related processes running in the background.

Master your system today!

2. Remove All CefSharp.BrowserSubprocess.exe Files

To do this, press Win + E keys to open File Explorer and search for the file using Ctrl + F.

Right-click on it and select Open file location, then select all of them except those in C:Windowssystem32 folder and click Delete.

This should help solve the problem temporarily, but note that you may need to do more if it persists.

Common Issues:

Common issues associated include:

  • High CPU or memory usage
  • Crashes or freezes
  • Other specific issues

If you experience any of these problems, it could be due to a bug or compatibility issue with the application that uses the CEF framework.

To troubleshoot this, try the following steps:

  • Update the app to its latest version as it may contain fixes for bugs and performance improvements.
  • Disable problematic browser extensions or clear your cache to help resolve some of these issues.

If none of these steps work, then contact the developer’s customer support for assistance.

Check The File Location

Select the cefsharp.browsersubprocess.exe file, right click on it and select Properties to find its location.

If it’s in C:WindowsSystem32, then you’re good to go!

If not, that could be an indication there are issues with your app or some other problem is occurring that needs troubleshooting.

It’s important to pay attention to this file location and make sure everything is where it should be so potential problems can be avoided and your applications run smoothly.

Common Error Messages Associated With The Process

This file is part of the Logitech program and can cause problems when it’s not in its correct location or if it has become outdated.

To confirm this is the problem, check Task Manager for the file and end any processes associated with it.

If this doesn’t solve the issue then your host could be having difficulty, so try restarting your machine or running a virus scan to detect any malware which may have infected your system.

If all else fails, contact technical support who should be able to help identify and fix the problem quickly and easily for you.

How To Fix cefsharp.browsersubprocess.exe and Chromium Embedded Framework Errors?

Reinstalling the application should usually do the trick, as this will reinstall the latest version of cefsharp.browsersubprocess.exe and any other files associated with it.

If you’re feeling particularly tech-savvy, you could also download a fresh copy of the file from Github – but only if you know what you’re doing!

Either way, fixing errors with cefsharp is far simpler than dealing with virus or malware issues – so don’t worry too much!

How To Repair CefSharp.BrowserSubprocess.Exe Errors?

Repairing CefSharp’s errors can be easily done by reinstalling the application.

When there are issues with CefSharp, it is important to take quick action to solve the problem before it worsens.

Here are four steps you can take to repair your CefSharp errors:

  • Uninstall and then re-install your current version of CefSharp.
  • Check for updates on the official website and install any that are available.
  • Repair system files if necessary using a reliable program such as System Mechanic or ReimagePlus.
  • Run a full system scan using an anti-malware tool like Malwarebytes or Avast Antivirus.

How To End The CefSharp.BrowserSubprocess.Exe Process?

To do this, open Task Manager and locate CefSharp BrowserSubprocess under the Processes tab. If it’s present and causing high memory issues, right-click on it and select End Task from the pop-up menu.

This should stop the program from running in Windows 10, 8 or 7.

However, if you’re still experiencing problems after ending the task, remove CefSharp completely by deleting it in File Explorer.

Doing this will help ensure that your system runs smoothly again without any further issues caused by CefSharp’s presence.

How To Delete The CefSharp.BrowserSubprocess.Exe Files?

Deleting the CefSharp.BrowserSubprocess files can help ensure your system runs smoothly without any issues. It’s important to first identify the file location before you attempt to delete it, since deleting certain files in the wrong place can have disastrous consequences.

To do this, follow these steps:

  1. Open File Explorer.
  2. Type CefSharp.BrowserSubprocess.exe into the search box by pressing Ctrl + F.
  3. Wait for a few seconds to let it search.
  4. Right-click on the file when it appears.
  5. Select “Open file location”.
  6. Make sure that all of the CefSharp.BrowserSubprocess files are selected.
  7. Click “Delete”.

However, be cautious not to delete anything located inside the C:Windowssystem32 folder, as this can risk damaging your computer’s system software.

What does CefSharp mean?

You may be wondering what CefSharp means – it’s a popular library created in the C Sharp language and hosted on GitHub.

It is a lightweight .NET wrapper around the Chromium Embedded Framework (CEF). This lets you embed Chromium in your .NET applications, providing you with access to features such as HTML5, JavaScript, and CSS support.

By using CefSharp, developers can create powerful web browsers with just a few lines of code. The library also provides an efficient way of handling network requests and rendering webpages.

In addition, it allows developers to handle various events such as mouse clicks or keyboard presses.

With all these features available, creating powerful web browsers has never been easier!

You will often find this bundled with Razer software such as Razer Cortex or Razer Synapse.

Where can I find cefsharp browsersubprocess?

You can find the CefSharp browser subprocess file in the Razer folder of your computer’s Program Files.

It is a legitimate program which helps run certain web applications, and is not considered a virus or malware.

The program is used by some websites to ensure that their content displays properly when accessed from different browsers.

The CefSharp browsersubprocess.exe file contains code which enables those websites to open and display properly on your computer.

While it isn’t necessary to have this particular file installed, it can be beneficial for some users who want their web content to look as good as possible.

If you’re unsure whether or not you need this file, you can always check with the software developer or website hosting company before installing it on your system.

Why Cefsharp. browsersubprocess has stopped working ?

 It’s a valid question since this file is an essential part of the Chromium Embedded Framework (CEF), a popular open-source software development framework used to create browser applications.

The most common cause for CefSharp browsersubprocess not working is that the CEF application has crashed or become unresponsive due to conflicts with other applications on your computer.

Another possible reason may be that there are missing files or updates needed in order to keep the process running smoothly.

Finally, it could also be caused by malware or viruses on your system, so if you suspect this is the case, it’s best to run a full scan with an anti-malware program.

In any case, once you’ve identified the issue causing Cefsharp browsersubprocess to stop working, you can take steps to address it and get things back up and running again quickly and efficiently.

Related: What Is Vigembus Driver?

Is CefSharp.BrowserSubprocess.exe causing a high amount of disc space to be used?

Using the Task Manager program and selecting the Disk option can help to determine this, as it can be used to sort and display the disc use of CefSharp.BrowserSubprocess.exe.

If you find that this executable file is taking up more than its fair share, it may need to be addressed in order to ensure your computer runs optimally.

The first step would be to identify what process or application is using it so you can address any issues with that particular program or service directly, if needed.

It’s also important to check for any software updates for the application or service in question; out-of-date versions may cause unnecessary strain on resources like disk space and memory usage which could be alleviated by updating them accordingly.

Is CefSharp.BrowserSubprocess.exe a source of excessive network traffic?

If the process is using a large portion of your bandwidth, then this could be an indication of high network usage from the browser subprocess.

It’s important to note that this isn’t always indicative of malicious activity; it could just mean that certain websites or applications are consuming a lot of data. However, if you notice consistent spikes in network usage when using CefSharp, then it may be worth investigating further to ensure your computer is safe and secure from potential malware and viruses.

Additionally, consider removing the software from your computer if you have stopped using it to reduce unnecessary background processes.

Should I allow CefSharp BrowserSubprocess?

Given that CefSharp BrowserSubprocess is a core component of the CefSharp library, it may be necessary to allow this program on your system in order to use the library correctly.

However, you should also consider your security requirements before doing so. A security expert can provide guidance on how to properly secure your system while using CefSharp BrowserSubprocess.

In general, it is safe to allow this program as long as all security protocols are followed.


You don’t need to worry about CefSharp.BrowserSubprocess.exe being a virus or malware; it’s a legitimate process associated with your computer and is needed for certain processes to run correctly.

However, if you’re experiencing high CPU usage, disc space being taken up, or excessive network traffic, you should look into fixing those issues to make sure your computer is running as smoothly as possible.

If you are still having issues, get in touch with one of our technicians today!

Overall, CefSharp BrowserSubprocess isn’t something you need to worry about unless other problems arise.

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...