How to fix Assassin’s Creed Unity Errors: Crash, Lag, ACU.exe has stopped working, Stuttering, Uplay Issue and more

How to fix Assassin's Creed Unity Errors: Crash, Lag, ACU.exe has stopped working, Stuttering, Uplay Issue and more

If you still remember how Assassin’s Creed Unity proved to be an absolute disaster for Ubisoft. The game was set in Paris on the eve of French Revolution and featured Arno Victor Dorian. While on one hand, it boasted some pretty awesome visuals, Unity was a poorly ported game. Not only the PC port, but the console versions themselves suffered from several game breaking glitches.

We have compiled a list of possible solutions to issues you are facing. Ubisoft also patched the several times to get rid of the issues. So, make sure you updated your game version to the latest. After that if you are still facing issues, you can follow our guide to fix them yourself. But first, let’s take a look at the official system requirements for the game.

Assassin’s Creed Unity Official System Requirements

MINIMUM

  • OS: 64-bit Windows 7 SP1, Windows 8/8.1
  • Processor: Intel Core i5-2500K @ 3.3 GHz or AMD FX-8350 @ 4.0 GHz or AMD Phenom II x4 940 @ 3.0 GHz
  • RAM: 6 GB
  • Video Card: NVIDIA GeForce GTX 680 or AMD Radeon HD 7970 (2 GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX 9.0c compatible sound card with latest drivers
  • Hard Drive Space: 50 GB available space

RECOMMENDED

  • OS: 64-bit Windows 7 SP1, Windows 8/8.1
  • Processor: Intel Core i7-3770 @ 3.4 GHz or AMD FX-8350 @ 4.0 GHz or better
  • RAM: 8 GB
  • Video Card: NVIDIA GeForce GTX 780 or AMD Radeon R9 290X (3 GB VRAM)
  • DirectX: Version 11
  • Sound Card: DirectX 9.0c compatible sound card with latest drivers
  • Hard Drive Space: 50 GB available space

How to fix Assassin’s Creed Unity Errors: Crash, Lag, ACU.exe has stopped working, Stuttering, Uplay Issue and more

#1 Crash / ACU.exe has stopped working Issue in Assassin’s Creed Unity fix:

If your game is crashing every time you try to play, then update your graphic card drivers to the latest stable version. If this doesn’t fix your game, then follow the steps below.

  1. Start Uplay
  2. Go to Settings
  3. Uncheck “Enable in-game overlay for supported games”
  4. Launch the game

#2 No sound issue in Assassin’s Creed Unity fix:

If your there’s no sound while playing Assassin’s Creed Unity, follow the below workaround to fix the issue.

  1. Press Windows Key + R
  2. Enter “dxdiag” without the quotation marks
  3. Then under the Sound tab, reduce the Sound acceleration
  4. Close the window
  5. Launch the game

#3 Mouse input lag issue in Assassin’s Creed Unity fix:

This is an annoying issue that has plagued the open world game since the launch. To get rid of this problem, go to Nvidia Control Panel and increase the Max frame value to 2. This should fix the mouse input lag issue.

#4 ACU.exe is corrupt issue fix:

If you are getting an error saying that the ACU.exe is corrupt, you are at the right place. Follow the steps below to fix your corrupted game executable.

  1. Go to

    C:/Program Files (x86)/Steam/steamapps/common/Assassin’s Creed Unity/

  2. Delete ACU.exe from there
  3. Start Steam
  4. Verify the integrity of the game cache files of Assassin’s Creed Unity
  5. Launch the game

#5 Uplay crash error in Assassin’s Creed Unity fix:

If you just installed the game and your Uplay is crashing, just reboot your PC and try to play the game. It will be fixed.

#6 Low FPS / Lag in Assassin’s Creed Unity fix:

Update your graphic card drivers to the latest version. Also apply the latest patch from Ubisoft to get extra frames per second. These will surely make your game run smoother.

If there are still errors, please share your query in the comments section. We will try our best to fix the issues you are facing while playing Assassin’s Creed Unity. We will keep adding solutions to this page as new issues are encountered by PC users.

How to fix Assassin’s Creed Unity Errors: Crash, Lag, ACU.exe has stopped working, Stuttering, Uplay Issue and more January 16, 2016
Shuvo has been very passionate about technology and gadgets since his early days. He has been an avid gamer too. He is currently pursuing engineering in Computer Science. He loves trying out new apps and and sharing his knowledge with the world.