What is QLBController.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the QLBController.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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QLBController.exe file information

Windows Task Manager with QLBController
QLBController.exe process in Windows Task Manager

The process known as QLBController or HP Hotkey Support belongs to software HP HotKey Support or HP Hotkey Support by Hewlett-Packard Company (

Description: QLBController.exe is not essential for Windows and will often cause problems. QLBController.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 256,056 bytes (29% of all occurrences), 299,576 bytes and 9 more variants. 
The program starts upon Windows startup (see Registry key: MACHINE\Run). It is not a Windows core file. The file is certified by a trustworthy company. It is a Verisign signed file. The program is not visible. QLBController.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 24% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you are having problems with QLBController.exe, you may also do the following:
  1) uninstall HP HotKey Support or HPAsset component for HP Active from your computer using the Control Panel applet Uninstall a Program
  2) search the support area on the HP website.

Recommended: Identify QLBController.exe related errors

Important: Some malware camouflages itself as QLBController.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the QLBController.exe 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

this is what enables use of hotkeys functionality
this is what enables use of hotkeys functionality mainly -maybe you can deactivate and another service doing the same
On my HP computer, it displays the brightness and sound level when hotkeys are hit. It is quite slow after going to sleep/restart but it could be my computer.
  Guy   (further information)

Rating chart

Summary: Average user rating of QLBController.exe: based on 6 votes with 3 user comments. 2 users think QLBController.exe 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 thinks QLBController.exe is dangerous and recommends removing it.

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Best practices for resolving QLBController issues

A clean and tidy computer is the key requirement for avoiding problems with QLBController. 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 QLBController.exe 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

QLBController.exe [all]