What is qlbcontroller.exe? How Can I Remove It?

Qlbcontroller.exe is part of the QLB controller, a software component in HP notebooks used to enable support for special hotkeys. This software is supported by Hewlett-Packard and belongs to the HP Hotkey Support driver.

qlbcontroller.exe is completely safe software, which means it is unlikely to contain any malicious code that could compromise your PC. If you are facing issues with it or want to disable it, here is how to do this.

1. Uninstall HP Hotkey Support

If you want to get rid of qlbcontroller.exe because it is consuming a significant amount of CPU and memory resources, you can do this by simply uninstalling HP Hotkey Support.

To uninstall HP Hotkey Support, you can use the Bulk Crap uninstaller. It is an application that can be used to uninstall a large number of applications. One of the benefits of using Bulk Crap Uninstaller is that it clears the registry entries of the application to ensure a clean uninstallation.

1. Download and install the Bulk Crap uninstaller by using the link.
2. Once it is downloaded, extract the folder using the WinRar utility.
3. Then, open the extracted folder, and run the Bulk Crap Uninstaller application.
   
4. Once done, right-click the HP Hotkey Support application and select Uninstall.
   
5. Click Continue twice to proceed.
6. Then, click Begin Uninstallation.
   
7. Once done, now you should not see qlbcontroller.exe running in the task manager.

2. How to Fix qlbcontroller.exe stops working?

If qlbcontroller.exe stops working on your PC, you can try several methods mentioned below to fix the issue.

2.1 Disable your antivirus software

Your antivirus software might be blocking the HP HotKey Support driver from running on your computer. This is especially true if you use third-party antivirus software. Therefore, it is strongly recommended to disable it temporarily before making any significant changes to the computer.

The following steps may be different, depending on your antivirus program.

1. Open the system tray and right-click on your antivirus software.
2. Hover over the option related to Manage.
3. Then, select Disable permanently or Disable for 10 minutes.
   
4. Once the antivirus is disabled, verify if the issue is fixed or persists.

2.2 Perform a clean boot

There might be a third-party program or service preventing the qlbcontroller.exe from working. If that’s the case, you need to perform a clean boot to disable all the third-party services or programs running at the startup.

Additionally, if the issue gets fixed after performing a clean boot, then simply look into the services or third-party programs to find the culprit. To do so, simply enable the services or third-party programs one by one until you find the culprit.

1. Press the Win + R keys to open the Run Program.
2. Type msconfig in the search box and click OK to open the system configuration folder.
   
3. Choose the Selective Startup and go to the Services tab.
   
4. Tick Hide All Microsoft Services and then click Disable All.
   
5. Once done, go to Startup and click Open Task Manager.
   
6. Here disable all the third-party programs.
   
7. Once done, restart your computer, and the issue should be fixed. If not, proceed to other solutions.

2.3 Reinstall the Hotkey Support driver

If nothing works, reinstalling the Hotkey Support driver should fix the issue, especially if there are any corrupted application files.

1. Open the Windows Explorer and navigate to the following directory.

   C:\Program Files (x86) or (normally C:\Program Files (x86)\Hewlett-Packard

2. Delete the HP Hotkey Support folder. Make sure the qlbcontroller.exe is not running in the background to avoid the error message.
   
3. Once done, visit the HP support website.
4. Then go to Software and Drivers.
5. In the search bar, type your notebook model number and press Enter.
6. Choose your laptop from the results and then select the operating system and click Submit.
7. Expand the Driver-Keyboard, Mouse, and Input Devices (4) and download the HP Hotkey Support – UWP driver.
   
8. Once done, run the driver installer and follow the on-screen instructions to install the driver.
9. Finally, restart your computer and check if the issue is resolved.

If reinstalling the Hotkey Support driver also fails to fix the issue, you can use a system restore utility to go to the previous state where you were not encountering any issues. This requires a restore point to be created before you start encountering this issue. If you have created a restore point, you should utilize it to resolve this issue.