What Is AcroIEFavStub.dll? Is It A Virus Or Malware? How To Fix?

What is AcroIEFavStub?

AcroIEFavStub is an DLL file which belongs to the process Adobe PDF Toolbar for Internet Explorer which comes with the Software Adobe PDF Toolbar for IE developed by the software developer Adobe Systems

The .dll extension of the AcroIEFavStub file specifies it is a Dynamic-link library file.

Malware and viruses are also transmitted through DLL files. So we must be sure before opening any unknown DLL file on our computers. I have faced these DLL corrupt or malware issues many times.

We will check if the AcroIEFavStub file is a virus or malware. Whether it should be deleted to keep your computer safe? Read more below.

Is AcroIEFavStub safe to run? Is it a virus or malware?

Let’s check the location of this DLL file to determine whether this is legit software or a virus. The location of this file is mentioned below.

File Location / Danger rating: C:Program Files (x86)Common FilesAdobeAcrobatWCIEActiveXDC

To check whether the DLL file is legit you can start the Task Manager. Then click on the columns field and add Verified Signer as one of the columns.

Now, look at the Verified Signer value for AcroIEFavStub process if it says “Unable to verify” then the file may be a virus.

If the developer of the software is legitimate, then it is not a virus or malware. If the developer is not listed or seems suspicious, you can remove it using the uninstall program.

How to Fix AcroIEFavStub Errors

To fix the missing AcroIEFavStub file you can perform a system restore to restore all missing DLL files on your system.

If the system restores didn’t fix the DLL issue, then you can run System File Checker to fix corrupt DLL files on your Windows system.

How To Remove or Uninstall AcroIEFavStub

To remove AcroIEFavStub from your computer do the following steps one by one.

1. If the DLL file is part of a software program or game, then it will also have an uninstall option. Then you can run the Uninstaller located a directory like C:>Adobe Systems>Adobe PDF Toolbar for Internet Explorer orAdobe PDF Toolbar for IE >AcroIEFavStub_uninstall.dll
2. Or the AcroIEFavStub was installed using the Windows Installer then to uninstall it Go to System Settings and open Add Or Remove Programs Option.
3. Then Search for AcroIEFavStub or the software name Adobe PDF Toolbar for IE in the search bar or try out the developer name Adobe Systems.
4. Then click on it and select the Uninstall Program option to remove AcroIEFavStub file from your computer. Now the software Adobe PDF Toolbar for IE program along with the file AcroIEFavStub will be removed from your computer.

AcroIEFavStub DLL Frequently Asked Questions

How do I fix issues with AcroIEFavStub?

You can fix most of AcroIEFavStub issues by updating your drivers, uninstalling and reinstalling the software, disabling the AcroIEFavStub.dll service, or contacting Adobe PDF Toolbar for IE support for further assistance.

Can I remove AcroIEFavStub from my computer?

Yes, you can remove AcroIEFavStub dll file from your computer if you no longer need it. To do this, go to the Control Panel, select “Programs and Features,” and locate the Adobe PDF Toolbar for IE software. Right-click on the software and select “Uninstall.”

Does Adobe PDF Toolbar for IE software’s AcroIEFavStub file work on Mac computers?

No, AcroIEFavStub DLL file associated with Adobe PDF Toolbar for IE software is designed for Windows computers only. So, it does not work on Mac computers.

I hope you were able to learn more about the AcroIEFavStub dll file and how to remove it.

Let us know in the comments below if you face any other AcroIEFavStub issues.

Gowtham V

He is the founder of howtodoninja.com and is an experienced tech writer and a cybersecurity enthusiast with a passion for exploring the latest technological advancements. He has 10 years of experience in writing comprehensive how-to guides, tutorials, and reviews on software, hardware, and internet services. With an interest in computer security, he strives to educate users by writing content on how to use technology, and how to also protect their smart devices and personal data from cyber threats. He currently uses a Windows computer, and a Macbook Pro, and tests hundreds of Android phones for writing his reviews and guides.