What is megauploadtoolbar.dll?

Megauploadtoolbar.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about MegaUpload Toolbar.

Click to Run a Free Scan for megauploadtoolbar.dll related errors

Megauploadtoolbar.dll file information

The process known as MegaUpload Toolbar belongs to software Megaupload Toolbar or MegaUpload Toolbar by MEGAUPLOAD ( or Megaupload ( or MegaUpload (

Description: Megauploadtoolbar.dll is not essential for the Windows OS and causes relatively few problems. The file megauploadtoolbar.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,933,256 bytes (81% of all occurrences), 1,947,080 bytes, 1,803,720 bytes or 1,936,840 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 4E7BD74F-2B8D-469E-CCB0-B130EEDBE97C or A057A204-BACC-4D26-C39E-35F1D2A32EC8. The program is not visible. The file is able to change the behavior of, or monitor Internet Explorer. The megauploadtoolbar.dll file is digitally signed. There is no detailed description of this service. Megauploadtoolbar.dll is not a Windows system file. Megauploadtoolbar.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 62% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of any problems with megauploadtoolbar.dll, you may also want to uninstall the software Megaupload Toolbar using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify megauploadtoolbar.dll related errors

Important: Some malware camouflages itself as megauploadtoolbar.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the megauploadtoolbar.dll process on your PC to see if it is a threat. If MegaUpload Toolbar 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.


User Comments

Does not seem to do anything, but the toolbar is annoying
It is a toolbar of the porn site
  humBuk   (further information)

Rating chart

Summary: Average user rating of megauploadtoolbar.dll: based on 7 votes with 2 user comments. 3 users think megauploadtoolbar.dll is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user suspects danger.

Do you have additional information? Help other users!
What do you know about megauploadtoolbar.dll:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving megauploadtoolbar issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active megauploadtoolbar process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the megauploadtoolbar.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

megauploadtoolbar.dll [all]