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What does the nielsenonline.exe file do?

The nielsenonline.exe process is also known as NielsenOnline and is a part of Nielsen. This software is produced by The Nielsen Company (www.nielsen.com) or, as the case may be, NetRatings (www.nielsen-netratings.com). An obsolete or defective version of nielsenonline.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about nielsenonline.exe NielsenOnline

nielsenonline.exe is not a Windows system file and is known to frequently cause computer problems. The file nielsenonline.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 45,056 bytes (60% of all these files), 47,456 bytes, 76,000 bytes, 47,424 bytes or, as the case may be, 116,088 bytes.
It is no part of Microsoft Windows. This nielsenonline program does not have a visible window, and does not appear on the taskbar. Windows starts the process each time that the computer boots up (Registry: MACHINE\Run). The application can initiate a network connection--either to the Internet or on your LAN. For this reason, 50% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves nielsenonline.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about nielsenonline?

not much, but would be interested in becoming a member
linda andrade
how to remove it
Installed voluntarily and is very obvious about its purpose. Seems to have no adverse affect on my system whatsever and easily removeable using add/remove programs.
It's like TV Ratings system for internet traffic run by Nielson Group
Installed if you sign-up for Nielsen consumer questionnaires
Chris Archer

Summary: 2 users judge nielsenonline.exe to be an essential file that should not be touched. However, 4 users consider this to be a suspicious process and would like to get rid of it. For this reason, 5 users have already deleted nielsenonline.exe. source: file.net

How to uninstall Nielsen

nielsenonline.exe NielsenOnline fix

To remove NielsenOnline from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Nielsen in the list of available programs.
  5. Click Uninstall.

How to tell if nielsenonline.exe (NielsenOnline) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of NielsenOnline. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for NielsenOnline or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or nielsenonline.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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