---
title: "H2testw (Windows)"
---

This is an add-on section for checking your SD card for errors using h2testw.

Dependendo do tamanho do teu cartão SD e da velocidade do teu computador, este processo pode levar horas!

Esta página é só para utilizadores de Windows. Se não estiveres no Windows, vê as páginas para [F3 (linux)](f3-(linux)) ou [F3X (mac)](f3x-(mac)).

### What you need

* A versão mais recente do [h2testw](http://www.heise.de/ct/Redaktion/bo/downloads/h2testw_1.4.zip)

### Instructions

1. Copy `h2testw.exe` from the h2testw `.zip` to your desktop
1. Insert your SD card into your computer
1. Run `h2tsetw.exe`
1. Select "English"
1. Click "Select target"
1. Select your SD card's drive letter
1. Ensure "all available space" is selected
1. Click "Write + Verify"
1. Wait until the process is completed

___

If the test shows the result `Test finished without errors`, your SD card is good and you can delete all `.h2w` files on your SD card
{: .notice--success}

If the test shows any other results, your SD card may be corrupted or damaged and you may have to replace it!
{: .notice--danger}

### Return to [Get Started](get-started)
{: .notice--primary}