Fallout 4 LOOKUP FAILED Error: How to Fix

fallout 4 lookup failed

Are you facing “LOOKUP FAILED” error in Fallout 4? Many Fallout 4 players have passed though Lookup Failed error on PC and almost all players are getting this error while playing game. The error occurs just because of changes in UI settings, you can find the reasons by checking your mods.

How to fix “LOOKUP FAILED” error?

To fix “Lookup failed” error, there are two options as below.

Option 1 – Update Mods with Latest Strings

Visit – https://www.nexusmods.com/fallout4/mods/97/?tab=files

Download latest strings.

Go to Fallout 4 directory.

Click on “Data” folder.

fallout 4 data folder

Open the download file.

fallout 4 download folder

Open the Data folder in the archive.

open data folder

Drag the files to your Fallout Data folder.

drag files to fallout data folder

Option 2 – Uninstall Fallout 4 Mods.

  • Open Fallout 4.
  • Go to main menu.
  • Select Mods.
  • Go to Library and find the mod you wish to uninstall.
  • Select the Mod and click on “Delete” (You can also disable it from menu).

Note: Players can be experience different scenarios while playing game with mods. If you wish to download and operate the mods, you can do it at your own risk.

You should confirm the Integrity of game files after uninstalling your mods.

It can be possible that above mentioned steps cannot fix this issue, so you need to uninstall complete game and reinstall it.