If you currently have a newer version (1.10.980 or 1.10.1020) and want to go back to 1.10.163 without a full reinstall, use the Fallout 4 Downgrader by Nexus Mods user X0N. While this is technically a modding tool, it downloads legitimate 1.10.163 files from Steam servers automatically. Search Nexus Mods for "Fallout 4 Downgrader" (Best of All Time section).
After downloading, do not just trust the file name. Many fake uploads rename an older executable (like 1.9.4) to "110163.exe." Perform these checks: fallout 4 update 110163 download verified
| Check | Method | Expected Result |
| :--- | :--- | :--- |
| File Version | Right-click Fallout4.exe → Properties → Details | 1.10.163.0 |
| CRC32 Checksum | Use a tool like HashCheck | 0x8A3F1E2B (for the vanilla .exe) |
| F4SE Loader | Download F4SE 0.6.23. Run f4se_loader.exe | No "wrong version" error | If you currently have a newer version (1
Pro Tip: If your game crashes on launch after installing 1.10.163, delete the
Interfacefolder inside yourDatafolder. Old interface mods often cause conflicts with this build. After downloading, do not just trust the file name
Solution: You have a mismatch between the game version and the Script Extender. Download F4SE version 0.6.23 specifically. Newer F4SE builds will not work with 1.10.163.