When this error strikes, you might notice:
If the error persists after all five steps, visit Riot Games Support and search for “Vanguard Error 126”. Their official repair tool ( Riot Vanguard Repair ) can resolve edge cases. Vgcore.dll Error Code 126 Download
Only disable this for troubleshooting or if you fully trust Riot Games. Re-enable it after fixing the error. When this error strikes, you might notice: If