Fix Opera fatal error upon loading installer executable in Windows 10 [Steps]

What is ‘Opera fatal error upon loading installer executable’ in Windows 10/8/7?

If you are facing ‘Opera fatal error upon loading installer executable’ error in your Windows PC with Opera Browser installed when you start or restart your Windows computer, then you are in right place for the solution. Here, you will be guided with easy step/methods to resolve the issue. Let’s starts the discussion.

‘Opera’: Opera is multi-platform web-browser software designed & developed by its namesake company ‘Opera’. This web browser is available for Windows 7 or later,[6] macOS, Linux, (Formerly FreeBSD, Nintendo Wii, and Nintendo DSi). It is nowadays a Chromium based browser that distinguishes itself from other browsers through its user interface and other features. Opera users have access to news app based on AI-platform, Opera News.

However, several Windows users reported that they faced ‘Opera fatal error upon loading installer executable’ or ‘Fatal error upon loading installer executable’ error whenever they started their Windows computer with Opera browser installed. This error is usually appeared when you start your Windows 10/8/7 or Windows 11 computer with Opera browser installed on it. This Opera Fatal error states that system can’t find the file specified. Let’s take a look at error message.

Fatal error upon loading installer executable:

In line 273:The operation completed successfully., In line 304:The operation completed successfully., In line 199:The system cannot find the file specified., In line 273:The operation completed successfully., In line 308:The operation completed successfully., In line 178:The specified procedure could not be found.,

When reporting this error, click on this text and press Ctrl + C to copy it.

As mentioned, this Opera Fatal error message is appeared only when you start your Windows computer. Although this error is doing no harm to your Windows computer but it is still annoying and should be fixed. This issue can be occurred due to outdated or incompatible Opera browser version installed in your Windows computer. In such case, Opera browser update is necessary and checks if updating Opera browser resolves the issue. Let’s go for the solution.

How to fix Opera fatal error upon loading installer executable in Windows 10/8/7?

Method 1: Fix ‘Opera fatal error upon loading installer executable’ 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.

⇓ Get PC Repair Tool⇓

Method 2: Update Opera Browser

 

Updating Opera browser to latest version can resolve the issue. Let’s try.

Step 1: Open ‘Opera’ browser and click on ‘Three-Dots’ icon or Opera icon at top-right corner

Step 2: Select ‘Help > About Opera’. This will check for updates and then you can download & install the latest version from there. Once updated, restart your computer and check if the error is resolved.

Method 3: Disable Opera Scheduled Autoupdate

 

One possible way to fix the issue is to disable Opera Scheduled Autoupdate in your computer.

Step 1: Open ‘Task Scheduler’ in Windows computer via Windows Search Box and go to ‘Task Scheduler Library’

Step 2: Find and select ‘Opera Scheduled Autoupdate’, and click ‘Disable’ to disable this task and the restart your computer, and check if the error is resolved.

Method 4: Clear Opera browsing data

 

You can clear browsing data of Opera browser in order to fix the issue.

Step 1: Open ‘Opera’ browser in Windows PC and click on ‘Opera Menu or Three-Dots‘ icon at top-right corner and select ‘Browsing Data’

Step 2: In the opened page/tab, select ‘All Time’ from ‘Time Range’ dropdown and check all checkboxes next to each options and then hit ‘Clear Data’ and confirm it to clear browsing data.

Step 3: Once finished, restart your computer and check if the Opera Fatal error is resolved.

Method 5: Uninstall and then reinstall Opera browser

 

If the issue is still persist, then you can try to fix the issue by uninstalling Opera browser and then reinstall it.

Step 1: Press ‘CTRL + SHIFT + ENTER’ keys on keyboard to open ‘Task Manager’, right-click Opera and select ‘Disable/uninstall’

Step 2: Now, navigate to following path and delete Opera installed folder

C:\Users\yourusername\AppData\Local\Programs\Opera

Or

C:\Program Files\Opera

Step 3: Remove temporary files relating to Opera  by navigating to follow path and delete them

C:\Windows\temp

Or

C:\Users\yourusername\AppData\Local\temp

Step 4: Now, press ‘Windows + R’ keys on keyboard, type ‘regedit’ in ‘Run’ window and hit ‘Ok’ button to open ‘Registry Editor’ and remove any Opera relating strings or keys

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run

HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet

HKEY_CURRENT_USER\SOFTWARE\Clients\StartMenuInternet

HKEY_CURRENT_USER\SOFTWARE\Classes\OperaStable

HKEY_CLASSES_ROOT\OperaStable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\OperaStable

HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications

HKEY_CURRENT_USER\SOFTWARE\RegisteredApplications

HKEY_CURRENT_USER\SOFTWARE\Opera Software

Step 5: Now, open ‘Settings’ App in Windows PC via Windows Search Box, and go to ‘Apps > Apps & Features’, find and right-select ‘Opera’, and click ‘Uninstall’ to uninstall it

Step 6: Once uninstalled, download & reinstall Opera latest version in your computer and restart your computer, and check if the error is resolved.

Conclusion

I am sure this post helped you on How to fix Opera fatal error upon loading installer executable in Windows 10/8/7 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.

Sakshi Anant Author