Repair Qlbctrl.exe Error

Qlbctrl.exe is a controller from the Hewlett-Packard Development Company, L.P. This process belongs to the QuickLaunch program that comes with HP laptops.

File Information

You may find qlbctrl.exe in the C:\ProgramFiles\Hewlett-Packard\HP Quick Launch Buttons\QlbCtrl.exe folder, by default. The most common size of the file on Windows XP is 159,744 bytes. You may also find the file in 131,072, 163,840, 135,168, 180,224, 184,320, 202,032, and 177,456 bytes sizes. The process adds an entry to  “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run” in the registry that enables the program to load at system startup.

Qlbctrl.exe Error and Resolution

“Qlbctrl.exe not responding” error may be displayed when you shutdown your PC, thereby slowing down the shutdown process.

If you are experiencing this error, here are a few things you may want to try.

Solution 1: Uninstall and then Reinstall QuickLaunch

Uninstall QuickLaunch, removing all the traces by using the Add or Remove Program (appwiz.cpl) utility. In case you face problems, you may choose to perform the removal by using a good program uninstaller tool, such as Perfect Uninstaller.

After you have removed the software, reboot the PC and if required reinstall QuickLaunch.

Solution 2: Disable QuickLaunch from Startup

1. Open Start, select Run, type msconfig and the press Enter.
2. In the System Configuration utility that opens, display the Startup tab.
3. Look for and clear the QuickLaunch (qlbctrl.exe) checkbox.
4. Click OK and restart your PC when prompted.

Solution 3: Change the QuickLaunch Startup Type

1. Open Start, select Run, type services.msc and the press Enter.
2. Search for QuickLaunch and right-click on it.
3. In the Path to executable section of the General tab ensure that path to the qlbctrl.exe file is given.
4. Next, set the Startup type to Manual from the drop down list.

Solution 4: Avoid Running Multiple Antimalware Programs

Do not run multiple antivirus and anti-spyware programs at the same time. This may lead to conflicts and affect the performance of your computer. Select one antivirus program and one spyware detection and removal tool, and uninstall any others. If you face difficulties uninstalling the programs, use Perfect Uninstaller to help you out.

Solution 5: Disable Unwanted Startup Processes

Disable all unnecessary processes that run on Startup by using the System Configuration Utility. If there is an unknown file or process in Startup, do some research and if you find that a process is useful or necessary, leave it alone. If a file or process is only occasionally useful, disable it. When necessary, the process can be activated manually.

This is a list of critical startup tasks that HP recommends you must keep enabled.

• BTTray.exe
• QPService.exe
• HPHC_Scheduler.exe
• HPWuSchd2.exe
• QlbCtrl.exe
• MSASCui.exe
• NVCpl.dll
• NvStartup
• NVMcTray
• NvTaskbarInit
• jusched.exe
• ccApp.exe
• cltUIStb.exe
• osCheck.exe
• SynTPEnh.exr
• WiFiMsg.exe
• HPWAMain.exe
• HPWuSch2.exe
• hpqwmiex.exe (HP ProtectTools)
• HP ProtectTools Service (This may be required to logon to the computer during diagnosis.)

HP advises users to leave these processes in the Startup folder. If you remove one, this may lead to an application error.