Here are some possible solutions to fix the “FALLOUT 4 SCRIPT EXTENDER (F4SE) NOT WORKING” Error.
1. Update Fallout 4 Script Extender App
2. Run F4SE Compatibility Troubleshooter
3. Remove Problematic F4SE Plugins
4. Stop Conflicting Mods
5. Verify the integrity of Files
6. Grant F4SE Firewall Access
Solution 1. Update Fallout 4 Script Extender Application
Updating is the best option to terminate the errors and bugs in any application. For this app, you should also update it to the latest version and it might then resolve the issue and work back as normal. This app is updated at different intervals to fix the previous issues and bugs in it.
Here are some steps to this process:
1. Navigate to the website and open the downloading page.
2. Click on the download button to download this app on your PC.
3. After downloading, extract all the downloaded files on your PC, these files must be f4se_1_10_120.dll, f4se_loader.exe, and f4se_stream_loader.dll to the fallout file C:/program files(x86)/steam/steamapps/common/fallout 4/.
4. Double click on the file f4se_loader.exe to run and install in your PC.
After finish installing, your application would be updated. Now, you can check that the program Fallout 4 Script Extender is working ok or not.
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