Fixing Shellexecuteex Failed Error

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ShellExecuteEx failed; code1155 is a system error code that usually occurs when you cannot open a file. This is because your computer is attacked by malware or viruses, or because your antivirus program is in conflict with ShellExecuteEx.

ShellExecuteEx is an important function of the system routine. ShellEx has failed; code1155 only means that your system is at high risk. To avoid further problems and damage, you should do your best to remove existing viruses as quickly as possible.

Running the application as an administrator

If you encounter a Shellexecuteex Failed error when opening or installing an application, it can cause problems due to an unexpected shutdown of the application or the installation of an executable file that does not have administrator access.

The following section explains how to run an application as an administrator.

Step 1: Right-click the application that causes the error and select Properties.

Step 2: Select the Compatibility tab and enable this program as an administrator in the Runtime Settings section. Click on Apply.

Step 3: Restart the application and check that the Shellexecuteex Failed error is fixed.

Disable UAC

Disable the UAC and try to reinstall or run the program.

Download and reinstall the installation program

If you receive the error message “shellexecuteex failed code 2” when installing an application or game you have just downloaded, we recommend that you download the installation program again. There may be an error in the installation file that causes the error message “shellexecuteex failed code 2”. In such a scenario, users will have to uninstall and reinstall the application or its traces. Also make sure that you run the installation program in administrator mode.

Resetting the System Sounds to the Default

As reported by several different users, this particular problem can also be caused by certain system sounds defined by certain subjects that are not properly handled by the module they are trying to use. If this scenario is applicable, the application will crash with the sounds when trying to play them,

In this case, you can solve the problem by resetting all Windows sounds to the default value. After the system rebooted, most of the users concerned reported that the problem had been solved.

Here is a quick guide to reset the system sounds to their default values:

1. Press Windows + R to open a Run dialog box. In the Run field, type “mmsys.cpl” in the text box and press Enter to open the Sound screen.
2. Once in the Sound window, select the Sounds tab from the horizontal menu. Then change the sound scheme to Windows Standard.
3. Once the active sound scheme has been successfully modified, restart your computer and check that the problem is solved the next time you start it.

Start your computer in safe mode and check if the problem persists.

1. Press the Windows + C button, then click Settings.
2. Click Power, hold down the Shift key on your keyboard, and then click Restart.
3. Click on Troubleshooting.
4. Click on Advanced Options.
5. Click on Startup Settings.
6. Click Restart.
7. Press the 5 key on your keyboard to activate the safe mode with network.

https://www.nvidia.com/en-us/geforce/forums/geforce-experience/14/192666/shellexecuteex-failed-code-1155/

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