1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory. Do not post "I have the same issue" in an existing thread with a game crash, always open your own thread. Do not PM developers and staff members for personal troubleshooting and support.
  2. As part of our continuous maintenance and improvements to Assetto Corsa Competizione we will be releasing small updates on a regular basis during the esports season which might not go through the usual announcement process detailing the changes until a later version update where these changes will be listed retrospectively.
  3. If ACC doesn't start with an error or the executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, run a Steam integrity check or reinstall the game altogether. Make sure you add the User/Documents/Assetto Corsa Competizione folder to your antivirus/Defender exceptions and exclude it from any file sharing app (GDrive, OneDrive or Dropbox)! The Corsair iCue software is also known to conflict with Input Device initialization, if the game does not start up and you have such devices, please try disabling the iCue software and try again. [file:unknown] [line: 95] secure crt: invalid error is a sign of antivirus interference, while [Pak chunk signing mismatch on chunk] indicates a corrupted installation that requires game file verification.
  4. When reporting an issue with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder, along with the logs and the crash folder (when reporting related to a crash).
ACC general support Note about silent updates Startup troubleshooting ACC savegame reports

ACC Troubleshooting

Please report here crashes and general issues

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  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,571
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
    Locked Sticky

    This thread, started by AC Support, has been deleted. Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
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  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,438
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND BUG ISSUE CRITICAL
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  1. bismarckcampus

    ISSUE AI double pitting

    bismarckcampus, Apr 4, 2020
    Replies:
    0
    Views:
    43
    bismarckcampus
    bismarckcampus
    Apr 4, 2020
  2. trutya

    ISSUE AI is unplayable on high agressiveness - Monza

    trutya, Aug 24, 2019
    Replies:
    18
    Views:
    424
    AdamYanek
    AdamYanek
    Feb 24, 2020
  3. Comrade Hedonism Bot

    ISSUE AI lag and stuttering

    Comrade Hedonism Bot, Mar 5, 2019
    Replies:
    14
    Views:
    345
    flashat69
    flashat69
    Mar 31, 2019
  4. DHMoto

    ISSUE AI Ran out of Gas in 2h Custom Race

    DHMoto, Apr 6, 2019
    Replies:
    0
    Views:
    40
    DHMoto
    DHMoto
    Apr 6, 2019
  5. Richard Dastardly

    ISSUE AMD / Eyefinity / FXAA

    Richard Dastardly, May 29, 2019
    Replies:
    1
    Views:
    105
    Richard Dastardly
    Richard Dastardly
    May 29, 2019
  6. Jarrod J Huffaker

    ISSUE an unforeseen event has caused the assetto corsa launcher to retire from the race

    Jarrod J Huffaker, Dec 4, 2019
    Replies:
    0
    Views:
    103
    Jarrod J Huffaker
    Jarrod J Huffaker
    Dec 4, 2019
  7. Jack Bancroft

    ISSUE An Unreal process has crashed: UE4-AC2

    Jack Bancroft, Oct 25, 2019
    Replies:
    1
    Views:
    200
    lucareale67
    lucareale67
    Feb 2, 2020
  8. David Danser

    ISSUE Anonymous

    David Danser, Apr 12, 2020
    Replies:
    2
    Views:
    151
    David Danser
    David Danser
    Apr 13, 2020
  9. bgil66

    ISSUE Another Freeze fest and Crash at end of Practice 2

    bgil66, Aug 7, 2019
    Replies:
    0
    Views:
    52
    bgil66
    bgil66
    Aug 7, 2019
  10. jolurove
    Locked

    ISSUE Assetto Corsa not launching in Windows 10

    jolurove, Nov 11, 2018
    Replies:
    6
    Views:
    102
    Rudski
    Rudski
    Nov 11, 2018
  11. john888

    ISSUE Assetto corsa only use one cpu

    john888, Dec 2, 2018
    Replies:
    2
    Views:
    453
    Roberto Olivetti
    Roberto Olivetti
    Dec 5, 2018
  12. Salvatore Amato

    ISSUE automatic engine on is driving me crazy

    Salvatore Amato, Nov 27, 2019
    Replies:
    2
    Views:
    98
    After_Midnight
    After_Midnight
    Nov 27, 2019
  13. Tobias Queck

    ISSUE Bad connection as soon as joining online server

    Tobias Queck, Feb 14, 2020
    Replies:
    0
    Views:
    43
    Tobias Queck
    Tobias Queck
    Feb 14, 2020
  14. CammelloBarbuto

    ISSUE Bad perfomance ACC

    CammelloBarbuto, Feb 11, 2019
    Replies:
    3
    Views:
    265
    CammelloBarbuto
    CammelloBarbuto
    Feb 12, 2019
  15. Gargos

    ISSUE Bad stuttering in game

    Gargos, Jun 29, 2019
    Replies:
    12
    Views:
    278
    vortex19
    vortex19
    Jul 2, 2019
  16. Stephen Llewellyn

    ISSUE Bentley stuck (race weekend)

    Stephen Llewellyn, Oct 12, 2018
    Replies:
    4
    Views:
    76
    trutya
    trutya
    Oct 16, 2018
  17. Keith Briscoe

    ISSUE Big stuttering since 0.7

    Keith Briscoe, Apr 5, 2019
    Replies:
    6
    Views:
    185
    earlyapex
    earlyapex
    Apr 5, 2019
  18. Balroque

    ISSUE Blurred textures

    Balroque, Apr 6, 2019
    Replies:
    0
    Views:
    68
    Balroque
    Balroque
    Apr 6, 2019
  19. BenediktH

    ISSUE Brake issues

    BenediktH, Apr 15, 2020
    Replies:
    10
    Views:
    210
    AudiSport
    AudiSport
    Apr 15, 2020
  20. R1-Limited

    ISSUE Braking becomes unpredictable as time progresses

    R1-Limited, Jun 5, 2019
    Replies:
    6
    Views:
    196
    R1-Limited
    R1-Limited
    Jun 10, 2019
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