Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I decided to give Opera another spin. I downloaded the new Opera 12.12 version, overlooking the fact that I had an older Opera still on my PC. This didn't turn out to be a problem. Opera neatly updated to 12.12. After a couple of hours, I exited Opera and tried to start it up again.

I got the following message on Opera's startup:

Opera failed to start because: The specified procedure could not be found.

I tried to uninstall Opera but ended up in the same error message.

Next step: I followed these instructions

  1. delete all files under C:\Users\username\AppData\Roaming\Opera
  2. delete all files under C:\Users\username\AppData\Local\Opera
  3. delete all files under C:\Program Files (x86)\Opera
  4. Run CCleaner to clean your registry
  5. Download the latest Opera installer and install it

So I reinstalled Opera which worked. But when I tried to start Opera I get same error again.

I would love to get Opera going again.

share|improve this question
up vote 2 down vote accepted

I think you need to try and remove it complete from your system, it sounds like it is referencing the wrong version (or that it doesn't realist it's all been removed.

Before you proceed with removing Opera, it is important that you know where Opera stores its settings. In Opera, go to Help > About Opera. Under "Paths" in the About Opera page, look for the path to your preferences - the Opera6.ini file. Take note of this path, as it will be needed to completely remove Opera from your system.

  1. Uninstalling Opera

To uninstall Opera, open the Control Panel from the Start menu in Windows. In the Control Panel, open "Add or Remove Programs", and locate Opera in the list of installed programs. Click "Remove" to uninstall Opera.

Please note that this will not remove user created files and settings.

  1. Removing user created files

In order to completely remove an Opera installation, the following directories must be removed after performing a normal uninstall:

The folder you installed Opera to.
The Opera settings folder.

If you chose not to use separate settings for each user when installing Opera, you will only have to remove your Opera installation folder. To find out if this is the case, look at the location of the file Opera6.ini, which you found earlier, and compare it to the path to your main Opera installation folder.

If the location of the Opera6.ini file is different from the location of opera.exe, you are using separate settings for each user, and will have to delete two folders manually.

Before proceeding, you may wish to take a backup of your files in case you wish to install Opera again:

To remove the remaining files on your system, simply delete the Opera installation folder. If the Opera6.ini is separate for each user (in a different location than opera.exe, make sure you delete the folder where this file can be found as well.


I have also seen people recommend this tool called Revo.
Source for tool recommendation

share|improve this answer
Well, the first part of this, finding out the path, I can't, as Opera want start up anymore. Uninstall, well, as you can read in my OP, I can't, same error. I did delete every opera file I could find (maybe I mist some? See the directories in my OP). So I'm sorry to say, but this quote from opera support wasn't very helpful. – Peter Jan 24 '13 at 8:39
The second part of your advice, the Revo tool, did the trick! I installed it and let it handle the uninstall with a "deep scan" for left over files and registry entries. After that I could install Opera again and it's working! Cheers! – Peter Jan 24 '13 at 9:02
@Peter I recommend you to choose the portable installation. This way Opera won't write anything to your registry and you avoid those problems in the future. – nixda Jan 24 '13 at 9:11
@nixda thanks, I'll try to remember that! – Peter Jan 24 '13 at 12:23

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .