assassins_creed_2_coverJust like all the computer games released nowadays, Assassin’s Creed 2 for PC can be plagued – for some – by crashes to desktop, game freezes and all sorts of errors. In this article we’ll try to find a solution to your Assassin’s Creed 2 crashes, freezes and errors so that you’ll be able to fully enjoy Ubisoft’s game.

Before trying any of the solutions listed below, make sure that your computer meets the minimum system requirements and also make sure to have all your drivers updated. If all things are done but Assassin’s Creed 2 still crashes or freezes, check out these possible solutions:

I. How to fix Assassin’s Creed “Please wait until saved games are synchronized from server” error crashes?

Usually, this error occurs because of the DRM implemented by Ubisoft. There’s only one way to avoid this: by disabling the option to save your game online. Here’s how to do it and get rid of this unwelcomed bugger:

1. After launching the game, click on the gear icon at the top right side of the dialog box
2. A new pop-up window will appear, asking if you wish to disable saved games from being stored online – select Yes.
3. Close the game launcher and go to the following folder: C:\Program Files\Ubisoft\Ubisoft Game Launcher
4. Find the file settings.ini and open it with a text editor (like notepad). Search for the SaveOnline=true line and replace it with SaveOnline=false.
5. Save the folder then delete the Storage folder in the Ubisoft Game Launcher directory.
6. Run the game and enjoy – no more problems!

II. How to fix Assassin’s Creed 2 crashes to desktop and not-launching issues?

1. If the game doesn’t launch, make sure you’re connected to the internet and try restarting Steam/your computer.
2. Also, you can try to lower the game’s settings by disabling Vsync and multi-sampling and turning down environment detail levels.

III. How to fix Assassin’s Creed 2 crashes and freezings during gameplay?

1. Close down all background applications before loading the game, just to be sure that nothing is conflicting with the game.

Close down background applications:
Click Start > Run > type msconfig > Click the Startup tab > Click Disable All button > Apply > OK, and restart your computer.

Delete the temporary files from your computer:
Click Start > Run > type %temp% > OK > click Edit > Select All > Delete.

2. If you have a multi-core processor, try disabling them, it might do the trick!

I hope that at least one of these solutions helps you fix the problems you’re experiencing while playing. If you have managed to find a solution of your own, please let us all know in the comment section below!


  1. Dear Mr. Ciabai,

    first of all many thanks for the support and intention to help us who really near to frustation to solve this crash issue on AC2. Your article was concise and perhaps gave most influence for me than others.

    Unfortunately, none of those suggestion works for me.
    The game still crashes randomly every 5-10minutes and have to press restart button each time.
    The game itself seems running fine in full HD resolution, and is able to save game normally.

    My PC specs is
    intel Core2duo E8400
    Saphire ATI Radeon 4850toxic
    team extreme RAM 2GB
    Silverstone PSU 500w
    ” LCD TV full HD

    I’ve updated both my chipset and graphic latest drivers, tried disable all background apps, disable one core, even upgrade to Windows 7 ultimate (used Vista ultimate before), but the problem still occurs.
    It also happens when I play Bad Company 2.

    I read another gamer who uses higher specs thantme also face the problem.

    Really appreciate if there still more suggestion you could offer.

    The game was actually my best favourite, since the first AC. Really frustated to have unnecessary trouble like this.

    Thank you in advance.

    • Many thanks, Mr. Ciabai. I lowered the screen resolution and it simply works finally!

      It is the resolution problem I suppose. I wonder why Ubisoft provide the 1920×1080 option for graphic but then the game incapable to support its own option?
      Isn’t the PS3 resolution for the game also full HD?

      Anyway, really appreciate for the fast respond.
      God bless.

  2. Crashes during 5 minutes of gameplay. It all started when I uninstalled mass effect 2 on my PC

    Ive deleted all temporary files, the drivers are updated, my hardware is beyond the requirements, etc.

    Point is, EVERYTHING’S REALLY FINE UNTIL I UNINSTALLED MASS EFFECT 2 on my PC. I cant figure out how its related to the crashes. Something to do with the registry? Idk.


  3. Try uninstalling your razer mouse program/drivers.I have razer salmosa and it keeps giving me blue screen until i removed it.

  4. After starting Game i game play it crashes win and forces it to Restart os
    On a :
    intel Core-i7 920
    Ati Radeon HD5870
    6Gb OZC 1600mhz ram
    Runing on 64bit Win7
    Computer temepratures are not over 45°C
    Any idea how to fix

  5. Well the game runs ok up the point i have to tell his father that someone i had to deliver a letter to is out… and in that movie sequens it crashes all the time and i have tryed everything the net tells me to try =S

  6. When i’m having my blade fixed at Leonard, it freezes when I’m going to choose the hidden blade.
    I can go to the menu NP, and I get the weapon wheel, but it freezes, and I can’t move or anything.

    ATI Radeon 5650 1 GB
    Intel Core i-5 2,26 ghz
    Windows 7
    4GB DDR3 ram
    (It’s a laptop)

    PS: My mousemovements don’t respond correctly, it only works like 50% of the time, and that’s a really annoying problem.

    Any theories or solutions? Thx!

  7. I have a problem I didn’t find on the internet. it is about the save file. one day the game just didn’t start. so I unistalled it and reinstalled. then it worked just fine. but after I copyed my save file back it didn’t start anymore. I tried to start the game without the save file, then when I was in the menu to start the game I went back with Alt Tab, copied the save file, went back to the game and selected the menu to choose the memory. guees what…crashed…so do you have any solution? if you need my save file to check it I can send it via email. thanks

  8. yes i have core 2 duo 2.6 ghz 9500 gt forsa
    and igb ram but assasins creed crashes so
    i uninstalled direct x 10 by watching videos

  9. Yo! I found simple way to bypass cutscene freezing. After it stucks, just press win+d and after ctrl alt del. Then it minimizes. Set the priority of it to low and maximize again. If it freeze again. Repeat the same process. This is anoying. Don’t try if you don’t like.

  10. I’m guessing the game freezes have yet to be fixed? I came across these tips on my hunt to find an answer…

    Just a tip:
    For those that are jumping into the BIOS and taking the system to one core b/c of this advice… Save your self time, that isn’t going to do the trick. If anything, open task manager > right click on the process > and “Set Affinity…”, and choose what cores the process is allowed to utilize.

    But people should read more on setting the affinity, the OS does it on its own, but this is just one way of forcing it to run your way… Best of luck!

  11. hey man my game always stucks after ezio delivers the thing to dat person when he reach to that auditorium inside the room the game stucks when ezio meet father and his friend
    please helo it stucks everytime i play the game
    what should i do
    help me please

  12. Hey man.. The game freezes after i leave the sanctuary for the 6th assassin seal. any suggestions or anything you could do to help? please help me. thank you.

  13. Dear Mr Ciabai,

    I have a very weird issue, i hope you know the solution:
    I bought the game 2 days ago, and at first i hadnt had any problems everything were set to high, but v-sync and multisampling. Yesterday UbiLauncher had 3 automatic updates, every since the game is lagging around 15 fps, nevertheless i havent modified anything.
    I tried to set both the resolution and the graphics settings, but noting has happened, the lagging is same at every resolution and details.


    Gigabyte GA-M770T-UD3
    Gainward GT240 1028/128 DDR3
    AMD Athlon AM3 X3 445 3.1 GHz
    A-DATA 1x2GB DDR3 1333 MHz

    Thanks in advance,

  14. For people experiencing freezing which requires shutting down the PC manually, try a program like Speedfan to check your system temperature – especially the temperature of your GPU. Assassin’s Creed 2 will give your PC a workout even at low settings, but cranking up the detail and anti-aliasing puts a serious load on the graphics processor. Most PCs are configured to automatically shut down when they reach a certain temperature to prevent damage to the components, and this may be the cause of your freezes.

  15. i need help,
    because there comes an error
    this is the error:

    23@PAVITestStatusCallback@523@@Z cannot be found in DLL-File ubiorbitapi_r2.dll

    can someone help me out with that?

  16. for me the game has installed properly but when the fifst scene starts the audio gets cut off and whwn i follow the lady and come near the chair the game closes!and if i press the esc key during game play the game just closes again!:-(any idea whats happening?

    ps config is i5 processor
    1gb Nvidia graphics card
    6gb ram

    really hope u can help me out!!
    thanking you in adavnce!

  17. hi all

    i was experiencing freezes after the ace up my sleeve mission and i tried the tips out and BINGO!! working perfctly!!

  18. hey evrey one
    i have problemme with the game ac2 on pc
    when i launch it evrey thing become black i mean the screen but i hear the sound of the game
    please help!!!

  19. Dear Mr. Ciabai,

    Whenver I launch AC 2 I can play it for sometime but then the game crashes to the desktop without showing any sort of error message.

    When I restart my comp. I can play the again for a BIT of time after which it crashes again.
    My comp. meets the System requirements, rather exceeds the recommended requirements!

    I have tried all that was mentioned in your post and even tried changing the resolution, but I am STILL having the same problem.

    Please help, cause I really love this game and I really want to play it.



  20. at sequence 8 when i go to leonardo to talk about the flying machine for the next time while watching the movie ( video ) the game began to stop and continue stop and continue then it minimizes automatically and then return to the normal form then do tha same thing again for 2 or 3 times then the pc restars automatically after showinh a blue screen …i think uts a movie ( video ) problem because while playing everything is allright but the problem here is in the movie help me plzzzzzzzzz.

  21. I just got this game off of Steam, and the first thing I noticed is that the graphics options keep resetting to the default, no matter what I select. As soon as I restart the game, I have to reset the settings. Even editing the setting.ini file has no effect. In fact, the settings.ini file has the correct settings (specifically I turn of Vsync, and turn on multisampling). They are correct in the ini fiel, but they still reset when the game starts. Also, the tip about not saving online, and changing the line in the ini file from saveonline-true to saveonline=false, cannot work, since there is no such line in the settings.ini file. Furthermore there is no such subdirectory as “Storage” in the Launcher directory

  22. i had the same issue and can’t find anything about it on the internet, despite hours of looking… you two are the only two ive found that even talk about it. anyone know how to fix that?

  23. I have the problem where the game shuts me down to the blue screen when I’m talking to my father after delivering the letter. It works fine as long as I don’t go into the cutscene. Is there any solution to this problem?

  24. The game freezes during the talk to Leonardo at the end of “An ace up my sleeve” just as you get the hidden blade. The weird thing is that even though the sequence won’t progress, I can still access ingame menues, even selecting the hidden blade. When i do this, his hair will twitch slightly, but the sequence still won’t progress.
    Clues anyone?

  25. Sorry to bother but I’ve been having issues with assassins creed 2 I bought it not long ago and started downloading it but then it started downloading a patch then it was completed but then it still started downloading a patch it was called updating launcher I think but every time it was nearly complete say at about 93% it would just vanish for no reason and when I click on the Assassins Creed 2 icon and push play it would do the whole updating launcher thing again every time I try to play it I also have AC Revelations but am scared to download it just in case it happens again and I also want to play AC2 before revelations since I finished AC1 so is there anyway you can help me.

  26. My game starts, and I see the Ubisoft logo and hear the sound, then it goes black and the game quits, and Uplay says ‘thank you for playing assassin’s creed 2″ total time playing : 0 hours and 0 minutes.
    any ideas what might be up?

  27. Dear Mr. Ciabai,

    When I click on the icon to play ACII it goes straight to the Uplay sign in, but after I put my email and password in it tries to load but then force closes.

    I have restarted my computer and it does the same thing. I have also disconnected from the internet, but it says that I need to login with the internet at least once before I can go offline.

    Do you have any suggestions as to how to resolve this issue?

    Thank you in advance.

  28. Dear Mr. Ciabai,

    In sequence 2 the Mission begins but It does not show me where to go.i fixed that problem with the third solution you have given .But on sequence 8 memory 1 i reach the memory start location but cutscene doesnt appear and so doesnt mission

    I want to finish the game

    please help me if you can

    thank you


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