Opera 12.12 Opera 12.12

A guide to uninstall Opera 12.12 from your computer

Opera 12.12 is a Windows application. Read more about how to remove it from your PC. It was coded for Windows by Opera Software ASA. You can read more on Opera Software ASA or check for application updates here. More information about the program Opera 12.12 can be seen at . The application is frequently placed in the C:\Program Files\Opera folder. Take into account that this location can differ being determined by the user's preference. The complete uninstall command line for Opera 12.12 is C:\Program Files\Opera\Opera.exe. opera.exe is the programs's main file and it takes circa 858.48 KB (879080 bytes) on disk.

Opera 12.12 installs the following the executables on your PC, taking about 858.48 KB (879080 bytes) on disk.

  • opera.exe (858.48 KB)

The current page applies to Opera 12.12 version 12.12.1707 alone. Click on the links below for other Opera 12.12 versions:

If you're planning to uninstall Opera 12.12 you should check if the following data is left behind on your PC.

Folders found on disk after you uninstall Opera 12.12 from your computer:
  • C:\Program Files\Opera
  • C:\Users\UserName\AppData\Local\Opera
  • C:\Users\UserName\AppData\Roaming\Opera

Usually, the following files are left on disk:
  • C:\Program Files\Opera\D3DCompiler_43.dll
  • C:\Program Files\Opera\defaults\feedreaders.ini
  • C:\Program Files\Opera\defaults\handlers-ignore.ini
  • C:\Program Files\Opera\defaults\plugin-ignore.ini
  • C:\Program Files\Opera\defaults\search.ini
  • C:\Program Files\Opera\defaults\standard_speeddial.ini
  • C:\Program Files\Opera\defaults\standard_trusted_repositories.ini
  • C:\Program Files\Opera\defaults\tips_metadata.ini
  • C:\Program Files\Opera\defaults\webmailproviders.ini
  • C:\Program Files\Opera\defaults\xmlentities.ini
  • C:\Program Files\Opera\gstreamer\gstreamer.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstaudioconvert.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstaudioresample.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstautodetect.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstcoreplugins.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstdecodebin2.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstdirectsound.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstffmpegcolorspace.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstoggdec.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstwaveform.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstwavparse.dll
  • C:\Program Files\Opera\gstreamer\plugins\gstwebmdec.dll
  • C:\Program Files\Opera\locale\be\search.ini
  • C:\Program Files\Opera\locale\be\standard_speeddial.ini
  • C:\Program Files\Opera\locale\bg\search.ini
  • C:\Program Files\Opera\locale\bg\standard_speeddial.ini
  • C:\Program Files\Opera\locale\cs\search.ini
  • C:\Program Files\Opera\locale\cs\standard_speeddial.ini
  • C:\Program Files\Opera\locale\de\search.ini
  • C:\Program Files\Opera\locale\de\standard_speeddial.ini
  • C:\Program Files\Opera\locale\es-ES\search.ini
  • C:\Program Files\Opera\locale\es-ES\standard_speeddial.ini
  • C:\Program Files\Opera\locale\fr\search.ini
  • C:\Program Files\Opera\locale\fr\standard_speeddial.ini
  • C:\Program Files\Opera\locale\hu\search.ini
  • C:\Program Files\Opera\locale\hu\standard_speeddial.ini
  • C:\Program Files\Opera\locale\it\search.ini
  • C:\Program Files\Opera\locale\it\standard_speeddial.ini
  • C:\Program Files\Opera\locale\ja\search.ini
  • C:\Program Files\Opera\locale\ja\standard_speeddial.ini
  • C:\Program Files\Opera\locale\nb\search.ini
  • C:\Program Files\Opera\locale\nb\standard_speeddial.ini
  • C:\Program Files\Opera\locale\pl\search.ini
  • C:\Program Files\Opera\locale\pl\standard_speeddial.ini
  • C:\Program Files\Opera\locale\pt-BR\search.ini
  • C:\Program Files\Opera\locale\pt-BR\standard_speeddial.ini
  • C:\Program Files\Opera\locale\ro\search.ini
  • C:\Program Files\Opera\locale\ro\standard_speeddial.ini
  • C:\Program Files\Opera\locale\ru\search.ini
  • C:\Program Files\Opera\locale\ru\standard_speeddial.ini
  • C:\Program Files\Opera\locale\sk\search.ini
  • C:\Program Files\Opera\locale\sk\standard_speeddial.ini
  • C:\Program Files\Opera\locale\sr\search.ini
  • C:\Program Files\Opera\locale\sr\standard_speeddial.ini
  • C:\Program Files\Opera\locale\tr\search.ini
  • C:\Program Files\Opera\locale\tr\standard_speeddial.ini
  • C:\Program Files\Opera\locale\uk\search.ini
  • C:\Program Files\Opera\locale\uk\standard_speeddial.ini
  • C:\Program Files\Opera\locale\zh-cn\operaprefs_locale.ini
  • C:\Program Files\Opera\locale\zh-cn\search.ini
  • C:\Program Files\Opera\locale\zh-cn\standard_speeddial.ini
  • C:\Program Files\Opera\mapi\OperaMAPI.dll
  • C:\Program Files\Opera\opera.dll
  • C:\Program Files\Opera\opera.exe
  • C:\Program Files\Opera\operaprefs_default.ini
  • C:\Program Files\Opera\region\ar\search.ini
  • C:\Program Files\Opera\region\ar\standard_speeddial.ini
  • C:\Program Files\Opera\region\au\standard_speeddial.ini
  • C:\Program Files\Opera\region\cis\en\search.ini
  • C:\Program Files\Opera\region\cis\en\standard_speeddial.ini
  • C:\Program Files\Opera\region\cis\ru\search.ini
  • C:\Program Files\Opera\region\cis\ru\standard_speeddial.ini
  • C:\Program Files\Opera\region\cn\browser.js
  • C:\Program Files\Opera\region\cn\en\search.ini
  • C:\Program Files\Opera\region\cn\en\standard_speeddial.ini
  • C:\Program Files\Opera\region\eg\search.ini
  • C:\Program Files\Opera\region\eg\standard_speeddial.ini
  • C:\Program Files\Opera\region\gb\search.ini
  • C:\Program Files\Opera\region\gb\standard_speeddial.ini
  • C:\Program Files\Opera\region\hk\browser.js
  • C:\Program Files\Opera\region\id\search.ini
  • C:\Program Files\Opera\region\id\standard_speeddial.ini
  • C:\Program Files\Opera\region\in\search.ini
  • C:\Program Files\Opera\region\in\standard_speeddial.ini
  • C:\Program Files\Opera\region\latin_america\search.ini
  • C:\Program Files\Opera\region\latin_america\standard_speeddial.ini
  • C:\Program Files\Opera\region\middle_east\search.ini
  • C:\Program Files\Opera\region\middle_east\standard_speeddial.ini
  • C:\Program Files\Opera\region\mx\search.ini
  • C:\Program Files\Opera\region\mx\standard_speeddial.ini
  • C:\Program Files\Opera\region\my\standard_speeddial.ini
  • C:\Program Files\Opera\region\ng\standard_speeddial.ini
  • C:\Program Files\Opera\region\ph\standard_speeddial.ini
  • C:\Program Files\Opera\region\pk\standard_speeddial.ini
  • C:\Program Files\Opera\region\region.ini
  • C:\Program Files\Opera\region\ru\search.ini
  • C:\Program Files\Opera\region\ru\standard_speeddial.ini
  • C:\Program Files\Opera\region\se\standard_speeddial.ini
  • C:\Program Files\Opera\region\tw\browser.js
  • C:\Program Files\Opera\region\ua\ru\search.ini

You will find in the Windows Registry that the following data will not be removed; remove them one by one using regedit.exe:
  • HKEY_CLASSES_ROOT\Applications\Opera.exe
  • HKEY_CLASSES_ROOT\Opera.Extension
  • HKEY_CLASSES_ROOT\Opera.Protocol
  • HKEY_CLASSES_ROOT\Opera.Widget
  • HKEY_CURRENT_USER\Software\Opera Software
  • HKEY_LOCAL_MACHINE\Software\Clients\Mail\Opera
  • HKEY_LOCAL_MACHINE\Software\Clients\News\Opera
  • HKEY_LOCAL_MACHINE\Software\Clients\StartMenuInternet\Opera
  • HKEY_LOCAL_MACHINE\Software\Microsoft\MediaPlayer\ShimInclusionList\OPERA.EXE
  • HKEY_LOCAL_MACHINE\Software\Microsoft\RADAR\HeapLeakDetection\DiagnosedApplications\opera.exe
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Tracing\opera_RASAPI32
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Tracing\opera_RASMANCS
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\Opera 12.12.1707
  • HKEY_LOCAL_MACHINE\Software\Netscape\Netscape Navigator\Opera
  • HKEY_LOCAL_MACHINE\Software\Opera Software

Use regedit.exe to delete the following additional registry values from the Windows Registry:
  • HKEY_CLASSES_ROOT\.bmp\OpenWithProgids\Opera.Image
  • HKEY_CLASSES_ROOT\.gif\OpenWithProgids\Opera.Image
  • HKEY_CLASSES_ROOT\.htm\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.html\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.jpeg\OpenWithProgids\Opera.Image
  • HKEY_CLASSES_ROOT\.jpg\OpenWithProgids\Opera.Image
  • HKEY_CLASSES_ROOT\.mht\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.mhtml\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.oex\OpenWithProgIDs\Opera.Extension
  • HKEY_CLASSES_ROOT\.oga\OpenWithProgIDs\Opera.Image
  • HKEY_CLASSES_ROOT\.ogg\OpenWithProgIds\Opera.Image
  • HKEY_CLASSES_ROOT\.ogm\OpenWithProgIDs\Opera.Image
  • HKEY_CLASSES_ROOT\.ogv\OpenWithProgIDs\Opera.Image
  • HKEY_CLASSES_ROOT\.png\OpenWithProgids\Opera.Image
  • HKEY_CLASSES_ROOT\.torrent\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.webm\OpenWithProgIDs\Opera.Image
  • HKEY_CLASSES_ROOT\.xbm\OpenWithProgIDs\Opera.Image
  • HKEY_CLASSES_ROOT\.xht\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.xhtm\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.xhtml\OpenWithProgIDs\Opera.HTML
  • HKEY_CLASSES_ROOT\.xml\OpenWithProgids\Opera.HTML

A way to remove Opera 12.12 using Advanced Uninstaller PRO

Opera 12.12 is an application marketed by the software company Opera Software ASA. Sometimes, users decide to uninstall it. Sometimes this is difficult because uninstalling this by hand takes some experience related to PCs. The best SIMPLE action to uninstall Opera 12.12 is to use Advanced Uninstaller PRO. Here is how to do this:

1. If you don't have Advanced Uninstaller PRO on your Windows system, add it. This is a good step because Advanced Uninstaller PRO is a very useful uninstaller and all around utility to optimize your Windows system.


  • go to Download Link
  • download the program by clicking on the green DOWNLOAD button
  • install Advanced Uninstaller PRO
2. Run Advanced Uninstaller PRO. Take your time to get familiar with the program's design and number of features available. Advanced Uninstaller PRO is a very useful system utility.

3. Press the General Tools button
Go to General Tools

4. Activate the Uninstall Programs feature
Go to Uninstall Programs

5. All the applications installed on your computer will be shown to you

6. Navigate the list of applications until you locate Opera 12.12 or simply activate the Search feature and type in "Opera 12.12". The Opera 12.12 app will be found very quickly. Notice that when you select Opera 12.12 in the list of apps, the following information about the application is available to you:

  • Safety rating (in the left lower corner). The star rating explains the opinion other people have about Opera 12.12, ranging from "Highly recommended" to "Very dangerous".
  • Reviews by other people - Press the Read reviews button.
  • Technical information about the app you are about to remove, by clicking on the Properties button.
For example you can see that for Opera 12.12:

  • The software company is:
  • The uninstall string is: C:\Program Files\Opera\Opera.exe
7. Click the Uninstall button. A confirmation page will come up. accept the uninstall by pressing Uninstall. Advanced Uninstaller PRO will remove Opera 12.12.
Uninstall Opera 12.12

8. After removing Opera 12.12, Advanced Uninstaller PRO will ask you to run an additional cleanup. Press Next to proceed with the cleanup. All the items that belong Opera 12.12 which have been left behind will be found and you will be able to delete them. By removing Opera 12.12 with Advanced Uninstaller PRO, you can be sure that no Windows registry items, files or folders are left behind on your computer.

Your Windows computer will remain clean, speedy and able to run without errors or problems.

Geographical user distribution

  • Windows 7 (6.1)
  • 10.0
  • Windows 8.1 (6.3)
  • Windows XP (5.1)
  • Windows 8 (6.2)
  • Windows Vista (6.0)
  • Windows (6.4)
  • Windows Server 2003 (5.2)
Software Application


This page is not a recommendation to uninstall Opera 12.12 by Opera Software ASA from your PC, nor are we saying that Opera 12.12 by Opera Software ASA is not a good application for your computer. This text simply contains detailed instructions on how to uninstall Opera 12.12 supposing you decide this is what you want to do. The information above contains registry and disk entries that other software left behind and Advanced Uninstaller PRO discovered and classified as "leftovers" on other users' computers.

2016-06-22 / Written by Dan Armano for Advanced Uninstaller PRO

follow @danarm
Last update on: 2016-06-22 12:53:16.513