This fixes 90% of Error 127 cases. VGCore.dll relies on the Microsoft Visual C++ libraries to function. If those libraries are corrupted, VGCore cannot initialize, throwing Error 127.
A prompt will ask if you want to overwrite the current workspace with factory defaults. Select . Step 1: Repair or Update Visual C++ Redistributables
Missing or outdated Microsoft Visual C++ components are a primary cause of DLL errors. Go to > Programs and Features .
Since vgcore is tied to Riot Vanguard, repairing the anti-cheat is the most direct solution.