What does the QLBCtrl.exe file do?
The QLBCtrl.exe process is also known as Quick Launch Buttons or, as the case may be, QLB Controller and is a part of HP Quick Launch Buttons (Version 6.10 B9, 6.20 B1, 6.40 H2, 6.40 D3, 6.40 L1, 6.10 A2, 6.40 F1, 6.10 A1, 6.40 B2, 6.40 D1, 6.40 M1, 6.30 E1, 6.30 J1) or, as the case may be, HPAsset component for HP Active. This software is produced by Hewlett-Packard Development Company, L.P (www.hp.com). An obsolete or defective version of QLBCtrl.exe can cause problems for your computer that can range from slowness to error messages such as these:
- Quick Launch Buttons has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- Quick Launch Buttons has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 10, 8, 7)
- QLBCtrl.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module QLBCtrl.exe. Read of address 00000000.
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What you should know about QLBCtrl.exe Quick Launch Buttons
QLBCtrl.exe is not a Windows system file and is known to frequently cause computer problems. QLBCtrl.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 323,640 bytes (28% of all these files), 159,744 bytes as well as 11 other variants.
The QLBCtrl file is not part of the Windows operating system. When Windows starts, this process is automatically started at the same time (Registry: MACHINE\Run). The program executes in the background, and can only be terminated using Windows Task Manager. The original file has a digital certificate (see its file properties). QLBCtrl.exe possesses a digital signature from Verisign.com, which should confirm its trustworthiness. For this reason, 33% 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 QLBCtrl.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 QLBCtrl?
|HP Pavillion Notebook Quicklunch Buttons. |
|Its the Quick Launch Button Control process for HP laptops / computers. If its causing problems, just end the process in task manager. It has prevented me from launching some apps (Supreme Commander - Forged Alliance). After killing the process - no worries (further information...) |
|gives instruction 0x004094ad memory cannot be read |
|HP says: "This package enables customers to program the Quick Launch Buttons on the keyboard or to use the default settings" |
|It was using up 40% of my CPU so I terminated it. It did nothing to my computer, it still works. But now the fans aren't blaring! |
|CPU HOG when running at same time as printing pdf document on my HP Pavilion dv7, using PDF-XChange viewer and HP OfficejetJ6480 printer |
Summary: One user judges QLBCtrl.exe to be an essential file that should not be touched. One user considers it harmless. However, one user considers this to be a suspicious process and would like to get rid of it. source: file.net
How to uninstall HP Quick Launch Buttons or HPAsset component for HP Active
To remove Quick Launch Buttons from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. You find it in the lower left corner of the taskbar.
- Type the word uninstall.
- Click Add or remove programs.
- Now locate HP Quick Launch Buttons or HPAsset component for HP Active in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if QLBCtrl.exe (Quick Launch Buttons) 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 Quick Launch Buttons. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Quick Launch Buttons 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 QLBCtrl.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.