When I opened Riot client today (Jan 31) the update button appeared. After I clicked update, the button frozen and I thought it was a fake update and turned off the client. Then the Vanguard icon appeared in the task bar. I turned the client on again and this time no update appear. I got in a match and play for 2 rounds (it was a remake match). I leave the game to do some works and come back then find Abyss this time. I picked Iso and the match about to start (it was when you see both side agents but not yet load into the game) and my PC restart itself. No blue screen, no "shutting down" loading screen, just pure black then reboot itself. Is this a Valorant issue or my PC? I'm using Win 10.