Now on the dropdown, try each one of these options: Windows XP (Service pack 3).

Then, check the box Run this program in compatibility mode for under the section Compatibility mode.

A new window will open and there navigate to the Compatibility tab.

Now, in the menu, click on the option Properties.

Go to your desktop and there right-click on the League of Legends shortcut.

If you haven’t able to open League of Legends before and always see the error, you may need to enable the compatibility mode on the shortcut properties.

Now every time you open LOL from that shortcut, you will be asked for admin rights directly.

Finally, there check the box Run this program as an administrator.

The Shortcut properties will open and there navigate to the Compatibility tab.

Go back to your desktop and right-click on the LOL shortcut.

If the game works when you enable the admin rights, you can enable this option permanently following these steps:

Now, it most cases the game will open without problems.

In the menu that opens, click on the option Run as administrator.

Go to your desktop and right-click on the League of Legends shortcut.

First, you need to check if the game works as an administrator: You may not try this before, but sometimes LOL requires individual permissions to be able to run all the components correctly.

That’s why on this post, I want to help you if you have the same error on your PC. But, the following happened… An error after the update that the client won’t let me open! After searching on forums and asking for help, I was able to fix this error. Some days ago, I woke up and wanted to play some League of Legends before going to college.

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