Fix: Ubisoft Connect Disk Error (Stuck on Install/Update)

The “Disk Error” in Ubisoft Connect usually appears during game downloads or updates and prevents files from being written or accessed properly. This issue is commonly caused by permission conflicts in Windows, antivirus interference, or system-level restrictions.

In some cases, corrupted game files or drive-related problems especially when using external or secondary drives can also lead to this error.

This guide covers clear and effective solutions to help you fix the error and get your game working again.

1. Temporarily Disable Antivirus

Antivirus software can mistakenly block Ubisoft Connect from accessing or modifying game files. To rule this out, temporarily disable your antivirus and check if the issue persists.

1. Right-click the antivirus icon in the system tray (bottom-right corner of the screen).
2. Select Disable protection, Turn off antivirus, or Pause protection depending on your software.
3. Once disabled, launch Ubisoft Connect and check if the disk error is resolved.

If the issue is resolved after disabling antivirus, you should add Ubisoft and your game folder to the antivirus whitelist to prevent future conflicts.

If the error remains, proceed to the next solution.

2. Run Ubisoft Connect with Administrator Privileges

Ubisoft Connect needs elevated permissions to install or update games. Without admin rights, it may not be able to write to protected folders or complete key operations. Running it as an administrator can fix these permission-related errors.

Windows security features can also block certain actions if access is limited, so this step is essential.

1. Right-click the Ubisoft Connect shortcut on your desktop and select Run as administrator.
2. Once Ubisoft Connect opens, try installing or updating your game again to see if the disk error disappears.

3. Use File Verification to Repair Corrupted Game Data

Corrupted or missing game files are a common cause of disk errors. Ubisoft Connect includes a file verification tool that scans your game files and replaces any that are damaged or incomplete.

This process ensures file integrity and helps prevent launch or install issues.

1. Launch the Ubisoft Connect application.
2. Go to your Library and find the game that’s showing the error.
3. Click the three dots next to the Play button.
4. Select Verify files and wait for the process to complete.
5. After the verification is complete, try launching or installing the game again.

4. Check and Allow File Access Permissions

If your user account doesn’t have full access to the game’s installation folder, Ubisoft Connect may be blocked from reading or writing files resulting in a disk error. Make sure your account has full control of the folder and update permissions if necessary.

1. Open File Explorer and go to your Ubisoft game’s installation folder.

   Usually: C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\games

2. Right-click the affected game’s folder and select Properties.
3. Click on the Security tab in the Properties window.
4. Under the “Group or user names” section, click Edit.
5. Select your user account and ensure Full control is checked under the “Allow” column.
6. Click Apply, then OK to confirm changes.
7. Now relaunch Ubisoft Connect and check if the disk error still appears.

5. Restart Your PC or Change the Game Installation Path

Restarting your computer can clear temporary background processes that interfere with Ubisoft Connect. If restarting doesn’t help, the issue might lie with the current drive especially if it has permission problems or a damaged file system.

In that case, changing the installation directory to a different drive can help create a clean environment for the game files.

1. Click the Start menu, then click the Power icon and select Restart.
2. After restarting, open Ubisoft Connect and try installing or launching the game again.

Steps to Change the Install Directory:

1. Open the Ubisoft Connect app on your PC.
2. Click your username at the top-right and select Settings from the dropdown.
3. Go to the Downloads tab and find Default game installation location.
4. Click the folder icon and select a different drive or folder. Avoid using your main system drive if space is low.
5. Once the new directory is set, reinstall the game and see if the disk error is resolved.

If none of the above solutions work, your final option is to reinstall Ubisoft Connect. This will restore all essential program files, fix any corrupted components, and give you a clean setup—potentially resolving the disk error for good.