It is possible that your configurations are not compatible with a new patch which might be causing the problems. In this method, we will delete the Client configurations for the League of Legends. Run League of Legends from Search Bar Method 2: Delete the League of Legends Client Configurations File
Now search League of Legends from the windows search bar and run the game.Search ‘ LeagueClient.exe’ and ‘LeagueClientUxRender.exe’ files and delete them (Also delete the League of Legends shortcut on your Desktop) Delete LeagueClient.exe” and “LeagueClientUxRender.exe.Go to the Drive where you installed the League of Legends and go to Riot Games > League of Legends.
When you delete the files, on the next launch these files are automatically downloaded by the League of Legends Client.
Chances are that these files have been corrupted and this may be causing the issue with the update. In this method, we delete the ‘LeagueClient.exe’ and ‘LeagueClientUxRender.exe’ files in the Riot Client folder. Method 1: Delete the ‘LeagueClient.exe’ and ‘LeagueClientUxRender.exe’ Files
Furthermore, your graphics driver might also be outdated. These include patch updates, that is, if you have applied a new patch there could be one or more corrupted files in your game libraries. Investigating the issue we have found that there can be many reasons why the game will not update. This can be very frustrating most of the time. You might get errors as “ Unspecified error occurred” or “ Check logs for more information”. Moreover, the information provided by the game is vague and does not help even the expert gamers to find out what the problem is.
The client is unable to update and this issue has been reported on several patches of the game.
Since Windows XP 64-bit doesn't have a Service Pack 3, you will need to upgrade to a more recent version of Windows to play League of Legends. We no longer support Windows XP and Windows Vista. Nvidia GeForce 8800/AMD Radeon HD 5670 or equivalent video card Dedicated GPU with 512MB or higher Video Memory (VRAM)