PenguinAnti-Scan GitHub
Free · Source available · Windows

Windows keepsscanning.The penguin says no.

Block periodic Wi-Fi background scans without killing your connection. When you actually need networks, open the Windows Wi-Fi panel and scan on demand.

Download for Windows Latest release Read the source
ONE .EXENO INSTALLERNO CUSTOM DRIVER
A determined penguin blocking a Wi-Fi scan
STATUSON GUARD
SELECTED ADAPTERWi-Fi 3Remembered ✓
01 / SEE THE DIFFERENCE

Background noise,
under control.

Windows can periodically search for nearby networks while you are already connected. That behavior may contribute to latency spikes on some systems. Penguin Anti-Scan asks Windows to stop until you need it.

WLAN ACTIVITY MONITOR
INTERACTIVE DEMO
60 ms40 ms20 ms0 ms
Latency Background scan
BACKGROUND SCANNING
AdapterWi-Fi 3

This demo only explains the behavior. The actual setting is changed by the Windows app.

02 / THREE CLICKS, BASICALLY

Tiny utility.
Very specific job.

01

Choose your adapter

Select the Wi-Fi card you actually use. The choice is saved for the next launch.

02

Let the penguin guard it

The app requests the background-scan setting through the native Windows WLAN API.

03

Forget about the window

Close it and the app stays in your system tray. Exit safely to restore normal behavior.

03 / NO SNAKE OIL

Not a “gaming optimizer.”
Just one honest fix.

It will not magically improve your router, signal strength or ISP. It targets one possible cause of periodic Wi-Fi latency spikes and leaves the rest of your network alone.

Inspect every line on GitHub
✓Native WLAN APINo custom kernel driver
✓PortableOne executable, no setup
×No Wi-Fi shutdownYour radio stays connected
×No fake promisesIt only handles scanning
PACKAGE1 portable EXE
PLATFORMWindows 10 / 11
RUNTIME.NET Framework 4.8
SOURCEPublic on GitHub
04 / READ BEFORE DEPLOYING PENGUIN

Questions worth asking.

01 Can it fix my Wi-Fi ping spikes?

It may help when those spikes come from periodic WLAN scans or roaming behavior. It cannot fix congestion, interference, weak signal, router issues or bufferbloat.

02 Why does it need administrator access?

Windows restricts changes to wireless interface settings. The app asks for elevation when it starts so it can request that change.

03 How do I know it is working?

The “Penguin on guard” state appears only after Windows reports that background scanning is disabled for the selected adapter.

04 How do I restore normal scanning?

Choose “Exit and restore Wi-Fi” from the tray menu. The app restores the normal background-scan behavior before it quits.

ENOUGH SCANNING

Put the penguin
in your tray.

Latest release · Portable for Windows

Download Penguin Anti-ScanPenguinAntiScan.exe