If you want to use a keyboard layout or locale that is not the default for your selected language, before installation you can add `KEYBOARD` and `REGION` variables like this:
If you want to use a keyboard layout or locale that is not the default for your selected language, you can add `KEYBOARD` and `REGION` variables like this (before installation):
```yaml
environment:
REGION:"en-US"
KEYBOARD:"en-US"
```
### How do I set the product key?
By default, an evaluation version of Windows will be installed, but if you have product key you can add a `KEY` variable like this (before installation):
```yaml
environment:
KEY:"XXXXX-XXXXX-XXXXX-XXXXX-XXXXX"
```
### How do I install a custom image?
In order to download an unsupported ISO image, specify its URL in the `VERSION` environment variable: