Neiro Fishing setup for Russian Fishing 4
Working Easy setup Menu key F2 / Insert / Home
An external program: it switches on by itself once you are on a lake.
Requirements
0 of 3 items
Tick what matches your PC:
- Windows 10 or 11, 64-bit, any build
- Russian Fishing 4 from Steam or its own launcher, windowed or borderless mode
- DirectX 11
System requirements
- Operating system Windows 10 or 11 All builds
- Processor Intel or AMD
- Graphics card NVIDIA or AMD
- Game mode Windowed or borderless window
- Launchers Steam or Game launcher
- Built-in spoofer No
Preparation
0 of 2 steps
Remove third-party antivirus and anti-cheats Kaspersky, Avast, ESET and the like, plus FaceIT and Riot Vanguard, conflict with the loader. They must be uninstalled, not just paused.
- Open Settings → Apps → Installed apps (or Control Panel → Programs and Features).
- Uninstall any third-party antivirus (Kaspersky, Avast, AVG, ESET, 360, Malwarebytes, etc.). Pausing or disabling is not enough — the antivirus driver stays resident.
- Uninstall the FaceIT AC and Riot Vanguard anti-cheats if present — they block third-party software at the kernel level.
- FaceIT is the CS2 anti-cheat, Vanguard is the Valorant one. If you don't play those games, they are safe to remove.
After removing an antivirus, restart the PC — some of its services only unload after a reboot.
Fully disable Windows Defender The #1 cause of “it won't launch”. Disable it for real: manually first, then remove it from startup, reboot, and finish it off with Defender Control.
- Step 1. Turn protection off by hand. Open Windows Security → Virus & threat protection → Manage settings and switch every toggle off:
- Real-time protection — Off.
- Cloud-delivered protection — Off.
- Automatic sample submission — Off.
- Tamper Protection — Off. Turn this one off first, otherwise the others switch themselves back on.
- Step 2. Disable reputation-based protection. In Windows Security → App & browser control → Reputation-based protection → Settings, turn everything off (SmartScreen, potentially-unwanted-app blocking).
- Step 3. Remove Defender from startup. Open Task Manager (Ctrl+Shift+Esc) → Startup apps tab, find Windows Security notification icon and click Disable.
- Step 4. Restart your computer. This is mandatory — some Defender services only unload after a reboot.
- Step 5. Finish with Defender Control. Download Defender Control (archive password: r1xon), run it as administrator and click Disable Windows Defender — the tile turns red.
- If your antivirus deletes the utility itself, protection is still active — go back to step 1. The file ships zipped on purpose so Defender can't wipe it before it's disabled.
Don't skip steps 3–4. “I turned the toggles off but it didn't help” almost always means Defender came back after restart because it was left in startup.
Launch
0 of 7 steps
- Download the loader with the Download Loader button and run it as administrator.
- Paste the key you received after payment and press Log In.
- The order does not matter: start the program before the game, in the main menu or already on a lake.
- Start Russian Fishing 4 and go to a lake. The console shows «Program started in game» and closes by itself.
- The menu opens on
F2,InsertorHome; you can set your own key in Settings. The menu language switches at the bottom left. - For auto fishing, take a rod in hand and turn on Auto fishing → Enable. For rods on stands, turn on Rods on stands and pick the input mode: «via memory» lets you minimize the game.
- To close the program: Settings → «Close program» (press twice) or
F12. All changes in the game are reverted and the game keeps running.
Problems & fixes
19Couldn't load vulnerable driver
Windows refuses to load the loader's driver. Turn off Defender and SmartScreen, disable core isolation, uninstall antivirus software and FACEIT. Then run the Vulnerable Driver Disabler file — it lifts the vulnerable driver block, which Windows 11 always needs — and restart the PC.
An empty error or the PC restarts
- Turn off User Account Control (UAC).
- Run the game launcher — Steam, BSG Launcher or another — as administrator.
- Sync the Windows clock twice in a row.
- The error also shows if you waited too long before pressing
F2after the cheat started: start again and pressF2as soon as the game loads.
The loader says Windows Defender is on
Defender is not fully off. Turn it off with Defender Control (the “Turn off Windows Defender completely” block above), then open the command prompt as administrator and run
The service must be STOPPED. If it is not, restart Defender Control as administrator and turn Defender off again.
sc query wdfilterThe service must be STOPPED. If it is not, restart Defender Control as administrator and turn Defender off again.
Cannot map physical address 0x1000
Almost always another anti-cheat is in the way: uninstall FACEIT, Riot Vanguard and ACE. Uninstall antivirus software — turning it off is not enough — and turn off Defender with SmartScreen. One more cause is the Windows build: 24H2 and 25H2 are not supported by most products, check the system requirements of yours.
C0000001
Check the Windows build with the
winver command and compare it with the product's system requirements — it is almost always the reason. Make sure Defender is off and restart the PC.Failure connect
The loader could not reach the server. Check the product status — maintenance may be under way. If the status is fine, turn on a VPN and run the loader again.
Critical error occured
Turn off Defender and SmartScreen, disable core isolation, uninstall antivirus software and FACEIT. Then right-click the loader file, open Properties and, if there is an Unblock checkbox at the bottom, tick it and press Apply.
Server internal error #684
This error is cleared only by support. Message us with a screenshot of the error, your key and the e-mail you used for the purchase.
Failed to initialize security modules!
The cheat is being started on a pirated copy of the game. The products work only with a licensed copy.
A blue screen when pressing F2
- Switch the game to windowed or borderless mode.
- Turn off automatic memory cleanup in the game settings.
- Make sure all Windows protection is off and antivirus software and FACEIT are uninstalled.
The loader console is empty
Turn off HDR in Windows settings and in the monitor's own settings, then run the loader again.
Broken font in the console
Restart the PC and change the scale in Settings → Display. If that does not help, open the command prompt as administrator, run
and restart the PC again.
sfc /scannow and then DISM /Online /Cleanup-Image /RestoreHealthand restart the PC again.
d3dx9_43.dll error
DirectX libraries are missing. Install them from the Microsoft website and restart the PC.
The internet drops after the launch
Open Control Panel → Network and Internet → Network Connections, turn your adapter off and back on.
C0E90002
Download the fix file, run it as administrator, accept the changes and restart the PC.
After F2 the game stutters but there is no menu
The cheat loaded but the menu is not drawn. Turn off Smooth Motion in the NVIDIA App. In DayZ, also install ReShade. If that does not help, contact support.
Windows test mode is on
The products do not start in Windows test mode. Download the check file and run it: if test mode is on, it offers to turn it off and restart the PC.
The program does not see the game
Make sure Russian Fishing 4 (
rf4_x64.exe) is running and you are on a lake, not in the main menu. Run the loader as administrator and close a second Neiro Fishing instance if one is open. Still nothing — send support a screenshot of the console or the menu.What does the «risk» mark on a feature mean?
It marks everything that shows up on a game screenshot if the server requests one: bright line, rod highlight, clear weather, removed vegetation and water. Turn these on deliberately.
Nothing matches. Run R1XON Checker or write to support — we will sort it out.
Advanced setup — only if it still won’t launch
Use a VPN for download and activation CIS ISPs often block the activation servers. A VPN is needed while downloading the loader, activating the key and injecting — you can turn it off before joining a match.
- Use a full VPN — an app that routes all traffic, not a browser proxy or extension: half the support tickets come from exactly this. In Happ and similar clients turn on TUN mode.
- Turn the VPN on before downloading the loader and activating the key. If something won't load, switch country (Europe or the US usually work).
- After a successful inject you can turn the VPN off before the match to avoid extra ping.
A VPN fixes most endless-loading and “key won't activate” problems.
FAQ
3Can I minimize the game while auto fishing runs?
Yes, in the «via memory» input mode. In the real clicks mode the game window has to stay open.
Does the bot fish at sea and with spinning?
Not yet: sea fishing and spinning are in development. For now auto fishing works with float and bottom rods, including rods on stands.
How do I bind feature keys?
Right in the feature row: click the key and press a new one.
Esc cancels, Backspace removes the key.
Still stuck?
Run R1XON Checker first — it pinpoints most launch problems in 30 seconds. If it still fails, attach the checker report to your support ticket and we’ll sort it out fast.