There’s nothing more annoying than finally sitting down to play League of Legends and not being able to open the game. Instead, you get the message “Windows cannot open the specified device.”

Luckily for you, there are a few potential solutions to this error, and even if you’re not that tech-savvy, you can easily fix it. These steps are simple, and I’ll explain each of them in detail and provide you with a few screenshots to help you navigate Windows and your favorite MOBA. There’s a good chance that these issues are due to the release of Vanguard on May 1st. Here’s how to fix the League error code “Windows cannot open the specified device.”

There are a number of solutions that can help you fix the “Windows cannot access the specified device” message when you try to sign in to your League account.

One of the most common solutions to this error is to close League and open the game properties from your desktop. You can do this by right-clicking on the League icon when it is closed. Right-click, go to the Security tab (the second one) and give your PC permission. The list of users with access is in the first box. Simply select edit and check your name in the box.