What is Lbd?

The genuine Lbd.sys file is a software component of Ad-Aware by Lavasoft.
Lbd.sys is a boot time driver file that runs Ad-Aware's anti-virus operations before the operating system has loaded into the memory. This is not a core Windows file and can be removed if known to cause problems. Boot-time anti-virus scans allow the system memory and hard disk to be scanned prior to the operating system or any other programs starting. This can be useful in cases where certain files can't be cleaned because they are being used during run-time. Ad Aware was first developed by Lavasoft in 1999 to block web beacons (image files used to keep track of user navigation through particular websites). Gradually, Ad Aware shifted towards fighting viruses, spyware and malware, and other problems. This executable file is part of Ad Aware's antivirus program. It is not essential for Windows. Lavasoft is a company that develops software. Established in Germany in 1999, it is headquartered in Gothenburg, Sweden. The Company was acquired in January 2011 by the Solaria Fund. It was soon discovered that the Fund was a run by entrepreneurs, Daniel Assouline and Michael Dadoun, previously accused of selling software that is available for free.

LBD stands for Lavasoft Boot Driver

Lbd.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if Lbd.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for Lbd drivers in need of updating

Lbd.sys file information

The process known as Boot Driver belongs to software Ad-Aware or Lbd by Lavasoft AB (

Description: Lbd.sys is not essential for the Windows OS and causes relatively few problems. The Lbd.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 64,160 bytes (78% of all occurrences), 64,288 bytes or 64,512 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The file is a Verisign signed file. It is certified by a trustworthy company. It is not a Windows core file. Lbd.sys is able to monitor applications. Lbd.sys appears to be a compressed file. Therefore the technical security rating is 6% dangerous; however you should also read the user reviews.

Uninstalling this variant: You can uninstall the software Ad-Aware using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify Lbd.sys related errors

Important: Some malware disguises itself as Lbd.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the Lbd.sys 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.


User Comments

lbd.sys is part of Ad-aware system driver file developed by lavasoft.
  Mary   (further information)

Summary: Average user rating of Lbd.sys: based on 1 vote with 1 user comment. One user thinks Lbd.sys is essential for Windows or an installed application.

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Best practices for resolving Lbd issues

A clean and tidy computer is the key requirement for avoiding problems with Lbd. 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, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Lbd.sys 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Lbd.sys [all]