The Libcef.dll Virus: What It Is and How to Remove It

It's not actually a virus

A conceptual illustration of the libcef.dll virus destroying a laptop.

Theresa Chiechi / Lifewire

No antivirus software tool is perfect. Instead, they're often sometimes over-cautious which is why some software can incorrectly report Libcef.dll as a virus

Libcef.dll is a file that's only available on Windows-based PCs. 

What Is the Libcef.dll Virus?

The Libcef.dll virus isn't actually a virus but software such as AVG and Avast can report it as what's known as a 'false positive'. While there are plenty of forms of malware out there, Libcef.dll isn't one of them.

It's worth understanding more about the process though, as it can help you know what to look for with genuine viruses. 

How Does Libcef.dll Work?

Libcef.dll is a DLL file. Essentially, it's a type of file that contains instructions that other programs have to call upon in order to do certain things. It's an important part of keeping a computer running smoothly. 

Unfortunately, because such files interact so much with other files, it's relatively easy for an antivirus software package to mislabel the file and assume it's a virus. 

In reality, Libcef.dll works with a number of different programs such as Tweetdeck, many Steam-based games, and other apps that require a web browser control interface. 

How Do I Know I Have the Libcef.dll Virus?

Libcef.dll isn't a virus. It's a file that quietly sits in the background on your PC, completing various tasks for you. Don't listen to reports from your antivirus software about how it's a potential threat.

Having said that, it's still important to run regular antivirus software scans or use malware detection tools to spot any other potential issues before they get worse. 

Just because Libcef.dll isn't a threat doesn't mean that you're not at risk of catching genuine viruses. 

How Did I Get the Libcef.dll Virus?

As we said, Libcef.dll isn't a virus. It's a useful file that works in the background in conjunction with many other safe programs. You don't have to worry about where you got it from. It can come from many different sources, and it's perfectly fine to keep it on your system. 

How Do I Get Rid of the Libcef.dll Virus?

It's not advisable to delete Libcef.dll as it can affect the correct working of programs and apps that you use regularly such as games or other practical tools. 

It's sensible to use antivirus software, as well as a malware removal app, but if it tries to quarantine Libcef.dll, you should ignore the warning. 

Running antivirus software can take several hours to complete the process, depending on the speed of your computer, but it also offers you the best methods in which to remove malicious files. 

It's also worth installing a malware removal tool which helps detect malware before it causes any trouble.

Like antivirus software, malware scanning can take many hours depending on the size of your computer's hard drive, as well as its speed. 

If you do detect a virus or malware, you can also use System Restore to return to an earlier point on your computer before you picked it up. Be sure to pick a time period where you know you definitely didn't already have the virus on your computer. It's not necessary in the case of acquiring Libcef.dll, however. 

It's highly unlikely that you'll need to reformat and reinstall your computer for most viruses, but it is the best guarantee that you've completely deleted them from your system.

It can take a long time to do and requires a certain amount of knowledge when it comes to setting your computer up. Don't rush into the decision and try all other methods first. 

How Can I Avoid Getting the Libcef.dll Virus Again?

Libcef.dll isn't a virus but this is the perfect time to think about your browsing habits and whether you're keeping safe online. There are a few key ways in which you can lower your chances of being infected with a virus or malware. Here's a brief look at them. 

  • Update your antivirus software and malware protection. Keep your antivirus software and malware protection up to date. New virus definitions are released regularly and these keep your PC informed on what to look for with new virus and malware-based threats. 
  • Be wary of new programs. It's important to know the source of the programs and apps you've downloaded. Less reputable sites bundle in extra add-ons that often turn out to be malware or adware. 
  • Stick to well-known websites. Some viruses can also infect your computer through the suspicious websites you might browse. Clicking on the 'wrong' link can lead to you downloading them. Be careful on websites such as torrenting sites. 
  • Don't click on banner ads. When a pop-up banner appears when browsing a website, don't click on it. Often, it's safest to go to a different website than stay on a site that inundates you with pop-up adverts.