What is ‘QLB Controller has stopped working’ in Windows 10?
In this article, we are going to discuss on How to fix QLB Controller has stopped working in Windows 10. You will be guided with easy steps/methods to resolve the issue. Let’s starts the discussion.
‘QLB Controller’ or ‘QLBController.exe’: QLB Controller or QLBController.exe is legitimate executable associated with HP Hotkey Support Software. The HP Hotkey Support (HPHKS) Software provides the support for handling the Hotkeys. If you start QLB Controller Software in your Windows computer, the commands contained in QLBController.exe will be executed on your computer. For this purpose, the file is loaded into RAM or main memory and runs there as a QLB Controller process/task.
However, several Windows users reported that they faced QLB Controller has stopped working issue on their Windows 10 computer whenever they tried to launch and use QLB Controller Software. This issue indicates you are unable to run and use QLB Controller Software – component associated with HP Hotkey Support (HPHKS) Software.
The possible reason behind the issue can be the interference of third-party applications, antivirus/firewall program installed in your computer. You can disable or uninstall the problematic applications in computer in order to fix the issue. Another possible reason behind the issue can be the missing/corrupted device drivers in computer. In such case, you can perform device drivers update in Windows computer in order to fix the issue. Let’s go for the solution.
How to fix QLB Controller has stopped working in Windows 10?
Method 1: Fix ‘QLB Controller has stopped working’ with ‘PC Repair Tool’
‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses issues, system files or registry issues, and other system issues with just few clicks.
Method 2: Update all your HP drivers and firmware
Updating all your HP drivers and firmware to latest & compatible version in your computer can resolve the issue.
Step 1: Open your browser and visit ‘HP Driver & Support Official’ page, and download & install the all your HP drivers and firmware update in your computer from there.
Step 2: You can also use ‘HP Support Assistant’ Official Driver & Firmware update tool offered by HP, to update all HP drivers and firmware.
Download or reinstall HP drivers & firmware update in Windows 10 [Automatically]
You can also try to update all Windows drivers including all HP drivers & firmware to latest & compatible driver version using Automatic Driver Update Tool. You can get this tool through button/link below.
Method 3: Reinstall HP Hotkey Support
Another possible way to fix the issue is to uninstall HP Hotkey Support Software in computer and then reinstall in computer.
Step 1: Open ‘Control Panel’ in Windows PC via Windows Search Box and go to ‘Uninstall a Program > Programs & Features’
Step 2: Find and select the ‘HP Hotkey Support’ software, and click ‘Uninstall’ button to uninstall it and after that, restart your computer
Step 3: After restart, download and reinstall HP Hotkey Support Software in your computer from HP Official site, and check if it works.
Method 4: Perform System Restore
If the issue is still persist, then you can perform System Restore in your computer in order to fix the issue.
Step 1: Press ‘Windows + R’ keys on keyboard, type ‘rstrui’ in ‘Run’ window and hit ‘Ok’ button to open ‘System Restore’
Step 2: Click ‘Next’, select a restore point according to date & time, and click ‘Next > Finish’ to start restoring process. Once finished, restart your computer and check if the error is resolved.
Method 5: Perform Clean Boot operation
You can also perform Clean Boot operation in computer in order to start your computer with minimum startup items, services or third-party apps, and fix the issue.
Step 1: Open ‘System Configuration’ app in Windows PC via Windows Search Box
Step 2: Click ‘Services’ tab, tick ‘Hide all Microsoft Services’ checkbox, and hit ‘Disable All’ button
Step 3: Now, click ‘Startup’ tab and click ‘Open Task Manager’, right-click on each startup item and select ‘Disable’ to disable them, and then close Task Manager
Step 4: Back to ‘System Configuration’ window and click ‘Apply’ and ‘Ok’ button to save the changes, restart your computer and check if the issue is resolved.
Method 6: Run SFC scan and DISM scan
Step 1: Type ‘cmd’ in Windows Search Box and press ‘SHIFT + ENTER’ keys to open ‘Command Prompt as Administrator’
Step 2: Type the following commands one-by-one and hit ‘Enter’ key after each to execute
sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
Step 3: Once executed, restart your computer and check if the error is resolved.
Conclusion
I am sure this post helped you on How to fix QLB Controller has stopped working in Windows 10 with several easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.
