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
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    1
    Views:
    31,425
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
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    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:
    84,356
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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  1. Ottovalvole

    SOFTWARE/HARDWARE ISSUE ACC Crashes ALWAYS in VR [system instability]

    Ottovalvole, Jun 11, 2022
    Replies:
    0
    Views:
    39
    Ottovalvole
    Ottovalvole
    Jun 11, 2022
  2. R-V0L

    SOFTWARE/HARDWARE ISSUE Fatal error [corrupted .pak file]

    R-V0L, May 7, 2021
    Replies:
    6
    Views:
    182
    sinnga
    sinnga
    Jun 3, 2022
  3. maxibenci

    SOFTWARE/HARDWARE ISSUE - Kernel - power id 41

    maxibenci, Jun 2, 2022
    Replies:
    2
    Views:
    53
    maxibenci
    maxibenci
    Jun 3, 2022
  4. martijn mijdam

    SOFTWARE/HARDWARE ISSUE "Fatal Error UE4 AC2" Absolutely no idea what i need to do or doing wrong?

    martijn mijdam, May 31, 2022
    Replies:
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    Views:
    144
    martijn mijdam
    martijn mijdam
    Jun 1, 2022
  5. Leonardo Grandis

    SOFTWARE/HARDWARE ISSUE UAE4 error, please help me.. [Unstable GPU]

    Leonardo Grandis, May 5, 2022
    Replies:
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    179
    Thomas Fun
    Thomas Fun
    May 28, 2022
  6. The Beast

    SOFTWARE/HARDWARE ISSUE Fatal error UE4 AC2 Crash

    The Beast, May 22, 2022
    Replies:
    1
    Views:
    132
    Thomas Fun
    Thomas Fun
    May 23, 2022
  7. vryos

    SOFTWARE/HARDWARE ISSUE game crash after race finish [OneDrive interfering w/ config folder - resolved by disabling]

    vryos, May 7, 2022
    Replies:
    4
    Views:
    67
    AndyK70
    AndyK70
    May 18, 2022
  8. Turbelette

    SOFTWARE/HARDWARE ISSUE Crash : UE4-AC Fatal Error [Unstable RAM/GPU clocks]

    Turbelette, May 9, 2022
    Replies:
    8
    Views:
    151
    AndyK70
    AndyK70
    May 13, 2022
  9. DeaTHBunnY

    SOFTWARE/HARDWARE ISSUE Game crash UE4-AC2 fatal error [Audio device driver]

    DeaTHBunnY, May 13, 2022
    Replies:
    1
    Views:
    164
    DeaTHBunnY
    DeaTHBunnY
    May 13, 2022
  10. enjointed

    SOFTWARE/HARDWARE ISSUE FATAL ERROR LINE 95 [Win Defender interfering with config folder]

    enjointed, May 9, 2022
    Replies:
    2
    Views:
    105
    AndyK70
    AndyK70
    May 10, 2022
  11. Le Freaky

    SOFTWARE/HARDWARE ISSUE [1.8.14] VR - Game crashes mid-race since [Fanatec driver memory leak]

    Le Freaky, May 4, 2022
    Replies:
    0
    Views:
    60
    Le Freaky
    Le Freaky
    May 4, 2022
  12. vryos

    SOFTWARE/HARDWARE ISSUE fatal error game crash on boot [audio device]

    vryos, Apr 14, 2022
    Replies:
    8
    Views:
    169
    vryos
    vryos
    Apr 23, 2022
  13. F@0

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Fatal Error - Game won't start [system instability]

    F@0, Apr 20, 2022
    Replies:
    4
    Views:
    170
    F@0
    F@0
    Apr 21, 2022
  14. Dom[Ger]

    SOFTWARE/HARDWARE ISSUE ACC CTD during online racing [Fanatec driver memory leak]

    Dom[Ger], Feb 3, 2022
    Replies:
    19
    Views:
    393
    Dom[Ger]
    Dom[Ger]
    Apr 21, 2022
  15. Marcd

    SOFTWARE/HARDWARE ISSUE Freeze while trying to start/run a race (in single player mode) [Sidewinder FFB frequency]

    Marcd, Apr 3, 2022
    Replies:
    5
    Views:
    125
    Marcd
    Marcd
    Apr 18, 2022
  16. zanner

    SOFTWARE/HARDWARE ISSUE Fatal Crash Issue in Online Race Reoccurring [netcode packet corruption]

    zanner, Apr 14, 2022
    Replies:
    3
    Views:
    83
    pankykapus
    pankykapus
    Apr 16, 2022
  17. cretz

    SOFTWARE/HARDWARE ISSUE Crash after about 40 min of rain race on CP MP servers [Fanatec driver memory leak]

    cretz, Feb 3, 2022
    Replies:
    4
    Views:
    284
    pankykapus
    pankykapus
    Apr 7, 2022
  18. Jacob Burley

    SOFTWARE/HARDWARE ISSUE Constant Crashes - UE4-AC2 + more

    Jacob Burley, Apr 5, 2022
    Replies:
    2
    Views:
    122
    pankykapus
    pankykapus
    Apr 5, 2022
  19. S Hughes

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Game Crash - D3D11Viewport.cpp:428 [Fanatec driver memory leak]

    S Hughes, Feb 19, 2022
    Replies:
    6
    Views:
    194
    xaotik
    xaotik
    Apr 5, 2022
  20. NiKK2

    SOFTWARE/HARDWARE ISSUE Crash without error message [Fanatec driver memory leak]

    NiKK2, Apr 1, 2022
    Replies:
    4
    Views:
    120
    pankykapus
    pankykapus
    Apr 5, 2022
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