# H2testw (Windows)

## Lecture Requise

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

Depending on the size of your SD card and the speed of your computer, this process can take up to several hours!

Cette section est dédiée aux utilisateurs de Windows uniquement. If you are not on windows, check out the [F3 (Linux)](f3-\(linux\)) or [F3XSwift (Mac)](f3xswift-\(mac\)) pages.

## Ce dont vous avez besoin

- The latest version of [h2testw](https://www.heise.de/ct/Redaktion/bo/downloads/h2testw_1.4.zip)

## Instructions

1. Copy `h2testw.exe` from the h2testw `.zip` to your desktop
2. Insérez votre carte SD dans votre ordinateur
3. Run `h2testw.exe`
4. Select "English"
5. Click "Select target"
6. Select your SD card's drive letter
7. Ensure "all available space" is selected
8. Click "Write + Verify"
9. Wait until the process is completed

::: tip

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.

:::

::: danger

If the test shows any other results, your SD card may be corrupted or damaged and you may have to replace it!

:::

::: tip

Return to [Get Started](get-started)

:::