What Causes the “We have restored this installation to an older version of League of Legends” Error on League of Legends?
We found the underlying causes to be:
Solution 1: Tweaking Date and Time
There are split results with this issue, some people are facing this issue because their date and time settings aren’t configured accurately while others have been able to bypass this issue because of their date and time settings being configured inaccurately. We will try both these fixes.
Solution 2: Using Hex Tool
The Riot Games’ developers recommend an automated fix tool to clear any issues with their games and we will be using that tool in our case to determine if there are any missing files from the game. For that:
How to Fix the ‘Default Radeon WattMan Settings Have been Restored due to…Windows 10 OS Users On Older Versions Being Served With KB4023057 Again To Undo…Fix: An Unknown Direct X Error has Occurred on League of LegendsHow to Fix League of Legends Error Code 004