What is BfLLR.dll?

BfLLR.dll, also known as the BFLLR Dynamic Library, is a DLL (Dynamic Link Library) file associated with the Qualcomm Atheros Killer Network Manager. This software is developed by Bigfoot Networks and is typically used in conjunction with Killer PCI-E network cards.

The Killer Network Manager, and by extension the BfLLR.dll file, is designed to optimize network traffic for applications. It prioritizes bandwidth usage for different applications, ensuring that high-priority applications (like online games or video streaming) get the bandwidth they need for optimal performance. This can be particularly useful for users with limited bandwidth or those who run many network-intensive applications simultaneously.

The BfLLR.dll file is a critical component of the Killer Network Manager. Without it, the software may not function correctly, leading to potential issues with network performance. This file should only be present if you have the Killer Network Manager installed and are using a compatible Killer Networking product.

While the BfLLR.dll file is generally safe and useful for those using Killer Networking products, there are some circumstances where you might want to remove it. If you're not using a Killer Networking product or the Killer Network Manager software, the presence of this file could indicate an incorrect installation or a potential malware issue. If the file becomes corrupted, it could cause errors or instability in your network connection. In these cases, you may want to remove the file and potentially reinstall the Killer Network Manager software.

It's important to be cautious when removing DLL files. Incorrectly removing or modifying DLL files can cause system instability or other issues. Always make sure to back up your system and consult with a professional if you're unsure.

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BfLLR.dll file information

The process known as BFLLR Dynamic Library belongs to software Qualcomm Atheros Killer Network Manager or ™ Killer PCI-E by Bigfoot Networks.

Description: BfLLR.dll is not essential for the Windows OS and causes relatively few problems. The file BfLLR.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/11/7 are 196,096 bytes (73% of all occurrences), 174,592 bytes, 183,808 bytes or 178,280 bytes.
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. It is not a Windows system file. The service has no detailed description. The program has no visible window. It can change the behavior of other programs or manipulate other programs. The application can be removed using the Control Panel's Add\Remove programs applet. BfLLR.dll is able to monitor applications. Therefore the technical security rating is 55% dangerous.

Uninstalling this variant: In case of any problems with BfLLR.dll, you can also do the following:
1) uninstall the software Qualcomm Atheros Killer Network Manager or Bigfoot Networks Killer Network Manager using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
2) ask Customer Support ^[1][2] to assist you
3) find out if there is a newer version ^[1][2] available.

Recommended: Identify BfLLR.dll related errors

Important: Some malware disguises itself as BfLLR.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the BfLLR.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

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Best practices for resolving BfLLR issues

A clean and tidy computer is the key requirement for avoiding problems with BfLLR. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the BfLLR.dll process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

tray.exe netsession_win_6c825ce.dll caremon.exe BfLLR.dll aa_v3.exe soundbooster.exe aawservice.exe oehook.dll sdcleaner.exe orbitnet.exe cleanupui.exe [all]

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