Vanguard has finally arrived in League of Legends, and nearly immediately the online community has been awash with players claiming their computers have been “bricked” by the kernel-level program and its activity.

The claims⁠, which were mainly shared on X (formerly Twitter) but also popped uphttps://www.facebook.com/leagueoflegends/?brand_redir=107740372034836across Reddit and Facebook, range from Vanguard preventing startup programs from firing correctly to other programs crashing when the anti-cheat software loads, and some have even suggested Riot’s kernel program has been “tampering with unrelated files.” Others simply dubbed it “malware” and declared they would be quitting League until the program stopped breaking PCs.