KeyLemon KeyLemon

A way to uninstall KeyLemon from your system

This web page is about KeyLemon for Windows. Below you can find details on how to uninstall it from your PC. It was coded for Windows by KeyLemon Solutions S.A.. Additional info about KeyLemon Solutions S.A. can be seen here. More details about the program KeyLemon can be found at . KeyLemon is commonly installed in the C:\Program Files\KeyLemon directory, subject to the user's choice. You can uninstall KeyLemon by clicking on the Start menu of Windows and pasting the command line C:\Program Files\KeyLemon\Uninstall.exe. Keep in mind that you might receive a notification for admin rights. The program's main executable file occupies 3.78 MB (3964856 bytes) on disk and is labeled KLGuiManager.exe.

The executable files below are installed alongside KeyLemon. They occupy about 22.55 MB (23647136 bytes) on disk.

  • ffmpeg.exe (16.85 MB)
  • KLGuiManager.exe (3.78 MB)
  • KLLockEngine.exe (981.43 KB)
  • KLUpdater.exe (688.93 KB)
  • Uninstall.exe (134.62 KB)
  • unzip.exe (161.00 KB) to view all...

The current page applies to KeyLemon version 2.7.1 alone. Click on the links below for other KeyLemon versions: to view all...
Some files, folders and registry entries will not be deleted when you want to remove KeyLemon from your computer.

Directories found on disk:
  • C:\Program Files\KeyLemon
  • C:\Users\UserName\AppData\Local\KeyLemon

Files remaining:
  • C:\Program Files\KeyLemon\ffmpeg.exe
  • C:\Program Files\KeyLemon\infozip-license.txt
  • C:\Program Files\KeyLemon\KLCore.dll
  • C:\Program Files\KeyLemon\KLGuiLogonScreen.dll
  • C:\Program Files\KeyLemon\KLGuiManager.exe
  • C:\Program Files\KeyLemon\KLLockEngine.exe
  • C:\Program Files\KeyLemon\KLUpdater.exe
  • C:\Program Files\KeyLemon\libeay32.dll
  • C:\Program Files\KeyLemon\models\face.vwm
  • C:\Program Files\KeyLemon\models\frontal.model
  • C:\Program Files\KeyLemon\models\speech.vwm
  • C:\Program Files\KeyLemon\QtCore4.dll
  • C:\Program Files\KeyLemon\QtGui4.dll
  • C:\Program Files\KeyLemon\QtNetwork4.dll
  • C:\Program Files\KeyLemon\QtOpenGL4.dll
  • C:\Program Files\KeyLemon\qtplugins\iconengines\qsvgicon4.dll
  • C:\Program Files\KeyLemon\qtplugins\imageformats\qgif4.dll
  • C:\Program Files\KeyLemon\qtplugins\imageformats\qico4.dll
  • C:\Program Files\KeyLemon\qtplugins\imageformats\qjpeg4.dll
  • C:\Program Files\KeyLemon\qtplugins\imageformats\qsvg4.dll
  • C:\Program Files\KeyLemon\qtplugins\sqldrivers\qsqlite4.dll
  • C:\Program Files\KeyLemon\QtSolutions_SingleApplication-2.6.dll
  • C:\Program Files\KeyLemon\QtSql4.dll
  • C:\Program Files\KeyLemon\QtSvg4.dll
  • C:\Program Files\KeyLemon\QtXml4.dll
  • C:\Program Files\KeyLemon\readme.txt
  • C:\Program Files\KeyLemon\ssleay32.dll
  • C:\Program Files\KeyLemon\translations\klguicommon_de.qm
  • C:\Program Files\KeyLemon\translations\klguicommon_es.qm
  • C:\Program Files\KeyLemon\translations\klguicommon_fr.qm
  • C:\Program Files\KeyLemon\translations\klguicommon_it.qm
  • C:\Program Files\KeyLemon\translations\klguicommon_pt.qm
  • C:\Program Files\KeyLemon\translations\klguilogonscreen_de.qm
  • C:\Program Files\KeyLemon\translations\klguilogonscreen_es.qm
  • C:\Program Files\KeyLemon\translations\klguilogonscreen_fr.qm
  • C:\Program Files\KeyLemon\translations\klguilogonscreen_it.qm
  • C:\Program Files\KeyLemon\translations\klguilogonscreen_pt.qm
  • C:\Program Files\KeyLemon\translations\klguimanager_de.qm
  • C:\Program Files\KeyLemon\translations\klguimanager_es.qm
  • C:\Program Files\KeyLemon\translations\klguimanager_fr.qm
  • C:\Program Files\KeyLemon\translations\klguimanager_it.qm
  • C:\Program Files\KeyLemon\translations\klguimanager_pt.qm
  • C:\Program Files\KeyLemon\translations\kllemonsmile_de.qm
  • C:\Program Files\KeyLemon\translations\kllemonsmile_es.qm
  • C:\Program Files\KeyLemon\translations\kllemonsmile_fr.qm
  • C:\Program Files\KeyLemon\translations\kllemonsmile_pt.qm
  • C:\Program Files\KeyLemon\translations\kllockengine_de.qm
  • C:\Program Files\KeyLemon\translations\kllockengine_es.qm
  • C:\Program Files\KeyLemon\translations\kllockengine_fr.qm
  • C:\Program Files\KeyLemon\translations\kllockengine_it.qm
  • C:\Program Files\KeyLemon\translations\kllockengine_pt.qm
  • C:\Program Files\KeyLemon\translations\klmngrlicenses_de.qm
  • C:\Program Files\KeyLemon\translations\klmngrlicenses_es.qm
  • C:\Program Files\KeyLemon\translations\klmngrlicenses_fr.qm
  • C:\Program Files\KeyLemon\translations\klmngrlicenses_it.qm
  • C:\Program Files\KeyLemon\translations\klmngrlicenses_pt.qm
  • C:\Program Files\KeyLemon\translations\klupdater_de.qm
  • C:\Program Files\KeyLemon\translations\klupdater_es.qm
  • C:\Program Files\KeyLemon\translations\klupdater_fr.qm
  • C:\Program Files\KeyLemon\translations\klupdater_it.qm
  • C:\Program Files\KeyLemon\translations\klupdater_pt.qm
  • C:\Program Files\KeyLemon\translations\qt_de.qm
  • C:\Program Files\KeyLemon\translations\qt_es.qm
  • C:\Program Files\KeyLemon\translations\qt_fr.qm
  • C:\Program Files\KeyLemon\translations\qt_it.qm
  • C:\Program Files\KeyLemon\translations\qt_pt.qm
  • C:\Program Files\KeyLemon\Uninstall.exe
  • C:\Program Files\KeyLemon\unzip.exe
  • C:\Users\UserName\AppData\Local\KeyLemon\dailyfaces\KLFaceDB.db
  • C:\Users\UserName\AppData\Local\KeyLemon\facemodel\be0e6056508ebabb2ed86351105b8f8d_1499316429311.mkl
  • C:\Users\UserName\AppData\Local\KeyLemon\facemodel\be0e6056508ebabb2ed86351105b8f8d_1499316429311.model
  • C:\Users\UserName\AppData\Local\KeyLemon\UserName.pkl
  • C:\Users\UserName\AppData\Local\KeyLemon\keylemon.ini

Use regedit.exe to manually remove from the Windows Registry the data below:
  • HKEY_CLASSES_ROOT\KeyLemon Theme File
  • HKEY_CURRENT_USER\Software\KeyLemon
  • HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Factory Cache 4.7\com.trolltech.Qt.QIconEngineFactoryInterface:\C:\Program Files\KeyLemon
  • HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Factory Cache 4.7\com.trolltech.Qt.QIconEngineFactoryInterfaceV2:\C:\Program Files\KeyLemon
  • HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Factory Cache 4.7\com.trolltech.Qt.QImageIOHandlerFactoryInterface:\C:\Program Files\KeyLemon
  • HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Factory Cache 4.7\com.trolltech.Qt.QSqlDriverFactoryInterface:\C:\Program Files\KeyLemon
  • HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\Qt Plugin Cache 4.7.false\C:\Program Files\KeyLemon
  • HKEY_LOCAL_MACHINE\Software\KeyLemon
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\KeyLemon

How to uninstall KeyLemon from your computer with Advanced Uninstaller PRO

KeyLemon is an application released by KeyLemon Solutions S.A.. Sometimes, computer users decide to erase this application. Sometimes this can be hard because deleting this manually takes some knowledge related to PCs. One of the best EASY approach to erase KeyLemon is to use Advanced Uninstaller PRO. Here is how to do this:

1. If you don't have Advanced Uninstaller PRO on your system, install it. This is good because Advanced Uninstaller PRO is a very potent uninstaller and all around tool to take care of your system.


  • visit Download Link
  • download the program by pressing the green DOWNLOAD button
  • install Advanced Uninstaller PRO
2. Run Advanced Uninstaller PRO. It's recommended to take some time to admire the program's design and number of features available. Advanced Uninstaller PRO is a very good program.

3. Click on the General Tools category
Go to General Tools

4. Press the Uninstall Programs tool
Go to Uninstall Programs

5. All the applications existing on the computer will be made available to you

6. Scroll the list of applications until you locate KeyLemon or simply click the Search feature and type in "KeyLemon". The KeyLemon application will be found automatically. Notice that when you select KeyLemon in the list of programs, some information about the application is available to you:

  • Star rating (in the left lower corner). The star rating explains the opinion other users have about KeyLemon, ranging from "Highly recommended" to "Very dangerous".
  • Opinions by other users - Click on the Read reviews button.
  • Details about the app you wish to uninstall, by pressing the Properties button.
For instance you can see that for KeyLemon:

  • The web site of the program is:
  • The uninstall string is: C:\Program Files\KeyLemon\Uninstall.exe
7. Click the Uninstall button. A confirmation window will show up. accept the removal by clicking Uninstall. Advanced Uninstaller PRO will automatically uninstall KeyLemon.
Uninstall KeyLemon

8. After removing KeyLemon, Advanced Uninstaller PRO will offer to run an additional cleanup. Press Next to start the cleanup. All the items that belong KeyLemon that have been left behind will be detected and you will be asked if you want to delete them. By uninstalling KeyLemon with Advanced Uninstaller PRO, you can be sure that no registry items, files or folders are left behind on your system.

Your system will remain clean, speedy and able to take on new tasks.

Geographical user distribution

  • 10.0
  • Windows 8 (6.2)
  • Windows 7 (6.1)
  • Windows 8.1 (6.3)
Software Application


This page is not a piece of advice to remove KeyLemon by KeyLemon Solutions S.A. from your PC, we are not saying that KeyLemon by KeyLemon Solutions S.A. is not a good application. This page only contains detailed instructions on how to remove KeyLemon supposing you decide this is what you want to do. Here you can find registry and disk entries that Advanced Uninstaller PRO discovered and classified as "leftovers" on other users' PCs.

2017-02-23 / Written by Dan Armano for Advanced Uninstaller PRO

follow @danarm
Last update on: 2017-02-23 04:36:07.417