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. 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).
  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.
ACC general support ACC savegame reports Startup troubleshooting

Troubleshooting - Workarounds

Crashes on startm troubleshootings, workarounds and other 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:
    26,860
    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 Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.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:
    81,395
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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  2. AC Support
    Locked Sticky

    CRITICAL PLEASE READ BEFORE OPENING A THREAD!!! how to solve most common issues (updated 24.12.2017)

    AC Support, Oct 21, 2014
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    AC Support
    AC Support
    Oct 21, 2014
  3.   » Normal Threads
  4. Brixxlnator

    CRITICAL CPU Usage over 95% and insane AI teleporting/flying

    Brixxlnator, Jan 31, 2014 ... 2 3 4
    Replies:
    73
    Views:
    1,868
    marlo0081
    marlo0081
    Mar 19, 2014
  5. SubaruSTI

    CRITICAL Assetto corsa laucnher error

    SubaruSTI, Jun 21, 2015 ... 2 3 4
    Replies:
    65
    Views:
    461
    Quffy
    Quffy
    Jun 25, 2015
  6. XabiMaz

    CRITICAL Ac goes back to desktop!!

    XabiMaz, Jun 13, 2015 ... 2 3
    Replies:
    54
    Views:
    542
    AC Support
    AC Support
    Jul 27, 2015
  7. xrider55

    CRITICAL Losing connection to all servers when playing online

    xrider55, Aug 28, 2017 ... 2 3
    Replies:
    42
    Views:
    490
    Some Guy
    Some Guy
    Sep 7, 2017
  8. StaRx ''

    CRITICAL Runtime errors and crashes!

    StaRx '', Aug 3, 2015 ... 2 3
    Replies:
    41
    Views:
    667
    AC Support
    AC Support
    Sep 10, 2015
  9. Dr. Hendo

    CRITICAL STILL BROKEN: AC doesn't start, only "preparing to launch"

    Dr. Hendo, Apr 30, 2016 ... 2
    Replies:
    38
    Views:
    410
    AC Support
    AC Support
    May 6, 2016
  10. Lord Stephen

    CRITICAL Game won't start

    Lord Stephen, Dec 16, 2015 ... 2
    Replies:
    33
    Views:
    574
    AC Support
    AC Support
    Dec 24, 2015
  11. Alemisso

    CRITICAL Few FPS during races

    Alemisso, Feb 1, 2014 ... 2
    Replies:
    33
    Views:
    830
    paulieGTR
    paulieGTR
    Feb 10, 2014
  12. おしの しのぶ

    CRITICAL Game wont load, but will in guest account!

    おしの しのぶ, Sep 27, 2015 ... 2
    Replies:
    31
    Views:
    460
    おしの しのぶ
    おしの しのぶ
    Oct 20, 2015
  13. FCT | JarEmpty

    CRITICAL Assetto Corsa Launcher crash

    FCT | JarEmpty, Jul 25, 2017 ... 2
    Replies:
    30
    Views:
    387
    Cezar™
    Cezar™
    Aug 12, 2017
  14. Big_Ben

    CRITICAL Black screen only, never seen anything else

    Big_Ben, Jan 29, 2015 ... 2
    Replies:
    30
    Views:
    288
    AC Support
    AC Support
    Feb 4, 2015
  15. Cinque

    CRITICAL 1.12 CPU99% - Fix dont work

    Cinque, Feb 18, 2017 ... 2
    Replies:
    28
    Views:
    1,260
    Gallow24
    Gallow24
    Mar 21, 2017
  16. Ale Robles

    CRITICAL High End PC and FPS problem on VR

    Ale Robles, Dec 28, 2018 ... 2
    Replies:
    26
    Views:
    584
    boabmatic
    boabmatic
    Feb 8, 2019
  17. candre23

    CRITICAL Launcher error - Game fails to start

    candre23, Oct 10, 2016 ... 2
    Replies:
    26
    Views:
    496
    Rudski
    Rudski
    Jun 18, 2018
  18. HitmanOliver

    CRITICAL I come in no race

    HitmanOliver, Jun 24, 2015 ... 2
    Replies:
    26
    Views:
    500
    william1141
    william1141
    Jul 17, 2015
  19. zzjorzz

    CRITICAL Very low FPS in races

    zzjorzz, Aug 20, 2019 ... 2
    Replies:
    24
    Views:
    360
    paulieGTR
    paulieGTR
    Sep 5, 2019
  20. Tim Barron

    CRITICAL Has anyone got this Error Msg?

    Tim Barron, Jan 14, 2014 ... 2
    Replies:
    24
    Views:
    318
    Tim Barron
    Tim Barron
    Jan 19, 2014
  21. Deleted member 139876

    CRITICAL Game crashes every 2nd race

    Deleted member 139876, Jun 29, 2016 ... 2
    Replies:
    23
    Views:
    363
    AC Support
    AC Support
    Jul 28, 2016
  22. 100cottage

    CRITICAL Can't Launch Game at All on Windows 10

    100cottage, Jul 14, 2016 ... 2
    Replies:
    22
    Views:
    332
    lelinuxien52
    lelinuxien52
    Jul 21, 2016
  23. Lorenzo Castellani

    CRITICAL Assetto Corsa problem

    Lorenzo Castellani, Sep 24, 2018 ... 2
    Replies:
    21
    Views:
    199
    Rudski
    Rudski
    Sep 29, 2018
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