The following page provides steps to resolve most issues that can occur during installation.

ICE has components which do not natively work on Linux (and by extension, the Steam Deck). ICE's Development Team does not provide (or intends to provide) support for these setups. However, an unsupported patch can be found on our Discord in the #unsupported-patches channel⁠ that can work with a Manual installation. Make sure to follow the instructions carefully.

When running MHW in Admin Mode, the following error can appear:

[ERROR:00-04-00] ICE needs the game to run in administrator mode when started for the first time. Please run as administrator on the first ICE boot or enable Developer Mode.

This error is caused by one of the following scenarios (click to expand):

Outdated Mod Files

The following files may remain from old installs of ICE or Stracker's Loader. If they exist in the Monster Hunter World folder, delete them.

• dtdata.dll
• hid.dll
• codex64.dll

Compatibility Settings

Compatibility settings can prevent ICE from launching properly. Make sure to check all the following locations (click to expand):

• ...\Monster Hunter World\MonsterHunterWorld.exe: Right-click MHW's executable, select Properties, then click on the Compatibility tab. All checkboxes must be empty on this tab.
• ...\Steam\Steam.exe: Right-click Steam's executable, select "Properties", then click on the Compatibility tab. All checkboxes must be empty on this tab.
• Steam's Launch Settings for MHW: In your Steam Library, right-click MHW, select "Properties...". Under "Launch Options", ensure that the field is blank.

Windows Versions Older than 10

Older versions of Windows may have issues running ICE. There is a potential fix available in the #unsupported-patches channel on our Discord, but ultimately we cannot provide additional support for these versions of Windows.

FAT32/ExFAT Hard Drive

ICE uses symlinks to avoid duplicating game data, while allowing players to quickly switch between vanilla and ICE. However, symlinks are not supported in FAT32/ExFAT formatting for hard drives. To check if your drive may be affected, open Windows Explorer, right-click the drive that MHW is installed on, select "Properties". Note what is listed under the "File System" label. If it reads FAT32 or ExFAT, you can use one of the following workarounds.

• Option A - Relocate MHW: Re-installing MHW on a non-FAT32/ExFAT drive will allow ICE to properly generate symlinks to handle game data.
• Option B - Manually Duplicate Game Data: This will require an additional 50GB+ of storage space. Copy all the chunk files from ...\Monster Hunter World\chunk\ to the ...\ICE\chunk\ folder. Rename each from "chunkGX.bin" to "cGX.bin", without modifying the number in the name (0 through 10, 60).