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:
    31,425
    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. Leo Sousa

    SOFTWARE/HARDWARE ISSUE G920 bug - very very disappointed

    Leo Sousa, Apr 29, 2020
    Replies:
    19
    Views:
    406
    Leo Sousa
    Leo Sousa
    Jun 18, 2020
  2. 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
  3. Zefeerino Coutinho

    SOFTWARE/HARDWARE ISSUE Future improvements on Level of Effort to Hardware for Running this game!

    Zefeerino Coutinho, Nov 15, 2018
    Replies:
    13
    Views:
    391
    LeDude83
    LeDude83
    Nov 20, 2018
  4. WollePetry

    SOFTWARE/HARDWARE ISSUE Stutter/crash with csl dd connected [Resolved by system format]

    WollePetry, Nov 26, 2021
    Replies:
    17
    Views:
    389
    Philipp Müller
    Philipp Müller
    Dec 6, 2021
  5. Max Melamed

    SOFTWARE/HARDWARE ISSUE Fatal Error [multiple failure points - system instability]

    Max Melamed, Aug 21, 2022 ... 2
    Replies:
    25
    Views:
    376
    Max Melamed
    Max Melamed
    Oct 17, 2022
  6. dim98vam

    SOFTWARE/HARDWARE ISSUE Fatal Error UE4-AC2 leading to blue Screen [RAM failure]

    dim98vam, Jan 1, 2021 ... 2
    Replies:
    29
    Views:
    373
    dim98vam
    dim98vam
    Jan 9, 2021
  7. gecervi
    Locked

    SOFTWARE/HARDWARE ISSUE Crash on startup with the UE4-AC2 .....U R G E N T

    gecervi, Sep 16, 2018
    Replies:
    9
    Views:
    365
    tomp0
    tomp0
    Dec 25, 2018
  8. FlaXxo

    SOFTWARE/HARDWARE ISSUE Game wont Start after Hotfix - Critical UE4 Error [audio device error]

    FlaXxo, Dec 15, 2021
    Replies:
    3
    Views:
    363
    Harmaa Myrsky
    Harmaa Myrsky
    Dec 17, 2021
  9. Torman

    SOFTWARE/HARDWARE ISSUE Games crashes after a while 1.3.11 [memory slot failure in quad-channel config]

    Torman, Apr 19, 2020
    Replies:
    12
    Views:
    360
    Torman
    Torman
    May 5, 2020
  10. DIN60n

    SOFTWARE/HARDWARE ISSUE The UE4-AC2 game has crashed and will... [AV interference]

    DIN60n, Jan 16, 2023
    Replies:
    5
    Views:
    355
    Carsten Redmann
    Carsten Redmann
    Apr 23, 2023
  11. Rhenok(mental)

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Fatal Error

    Rhenok(mental), Jun 11, 2023
    Replies:
    4
    Views:
    349
    Rhenok(mental)
    Rhenok(mental)
    Jul 20, 2023
  12. OliveTastic

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Crash on launch [BitDefender/Antivirus settings preventing file creation on startup]

    OliveTastic, Jan 10, 2020
    Replies:
    18
    Views:
    348
    xaotik
    xaotik
    Feb 7, 2020
  13. Karsten Biehr

    SOFTWARE/HARDWARE ISSUE Game constantly crashing - UE4-AC2 Fatal Error [GPU crash]

    Karsten Biehr, Feb 19, 2021
    Replies:
    2
    Views:
    336
    Karsten Biehr
    Karsten Biehr
    Feb 23, 2021
  14. mumblecrust7688

    SOFTWARE/HARDWARE ISSUE ACC crashes often (during single player race mostly) [system instability due to memory OC]

    mumblecrust7688, Apr 25, 2020 ... 2
    Replies:
    20
    Views:
    334
    mumblecrust7688
    mumblecrust7688
    Oct 1, 2020
  15. Marcus Burns

    SOFTWARE/HARDWARE ISSUE NO ONLINE ,NO TR, CN, CR, CC, exc.. KUNOS WTF... 3 updates later still no online access ..

    Marcus Burns, Jun 10, 2020
    Replies:
    9
    Views:
    329
    Marcus Burns
    Marcus Burns
    Jun 13, 2020
  16. mhmatthew

    SOFTWARE/HARDWARE ISSUE 1+ Second Stutter Since 1.6 update [RESOLVED by Disabling the High Precision Event Timer]

    mhmatthew, Dec 7, 2020
    Replies:
    3
    Views:
    325
    mhmatthew
    mhmatthew
    Dec 12, 2020
  17. Ben Walker

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Fatal Error Crash during launch Win 11 22H2

    Ben Walker, Nov 23, 2022
    Replies:
    11
    Views:
    325
    Ben Walker
    Ben Walker
    Jan 6, 2023
  18. dougjacobs

    SOFTWARE/HARDWARE ISSUE Stuttering/FPS Drop - Simucube 2 Pro [resolved by TD update]

    dougjacobs, Nov 26, 2021
    Replies:
    10
    Views:
    314
    dougjacobs
    dougjacobs
    Nov 27, 2021
  19. Goaqi

    SOFTWARE/HARDWARE ISSUE The game CRASH all the time. [GPU hung]

    Goaqi, Dec 2, 2020
    Replies:
    6
    Views:
    306
    Xavierf62
    Xavierf62
    Mar 7, 2022
  20. RamonCC69

    SOFTWARE/HARDWARE ISSUE UE4-AC2 Fatal Error

    RamonCC69, Jul 25, 2023
    Replies:
    3
    Views:
    298
    Thomas Fun
    Thomas Fun
    Jul 28, 2023
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