If nothing works, uninstall the Mod Kit completely.
The Mod Kit is a memory hog. At 45%, it tries to load high-resolution assets into RAM. If your RAM is full, it crashes. hello neighbor mod kit stuck at 45
Do not try these out of order. Start with Step 1, and stop when the problem is solved. If nothing works, uninstall the Mod Kit completely
This sounds insulting, but it isn't. The Hello Neighbor Mod Kit is notoriously inefficient at first launch. On a hard drive (HDD) or a lower-end SSD, the shader compilation at 45% can take 10 to 15 minutes. Many players quit at 60 seconds. Let it sit for a full 15 minutes. If it hasn't moved by then, proceed. If your RAM is full, it crashes
This report addresses the recurring technical issue where the Hello Neighbor Mod Kit (via the Epic Games Launcher) freezes or stalls indefinitely at 45% during the download or installation phase. Analysis indicates this is primarily caused by the Epic Games Launcher attempting to download a massive file (approx. 11GB+) into a temporary directory, failing to verify the file integrity during the process, or encountering a permissions conflict with the Unreal Engine prerequisites.
The following steps are ordered by the probability of success.
The 45% loading mark typically corresponds to the Mod Kit verifying and importing assets (textures, models, audio, and scripts) into the project. When it stalls here, it usually means the kit has encountered something it can’t process—corrupted data, a missing dependency, or an asset that violates the kit’s strict formatting rules.