# Delete Registry Key

> Deletes a specified registry key from the Windows registry. You can specify the root registry hive and the full path of the registry key to be deleted.

Source: https://docs.capaone.com/capaone/application-manager/powerbricks/delete-registry-key/  
Product: CapaOne — a separate CapaSystems product; do not apply this page to any other.

Deletes a specified registry key from the Windows registry. You can specify the root registry hive and the full path of the registry key to be deleted. This can be useful for cleaning up registry entries that are no longer needed or for removing keys that may be causing issues.

## Parameters

#### Registry Root
*Required* — Default: `HKEY_LOCAL_MACHINE`

Select the root registry hive containing the key to delete Allowed values: `HKEY_LOCAL_MACHINE`, `HKEY_CURRENT_USER`, `HKEY_CLASSES_ROOT`, `HKEY_USERS`.

#### Registry Key
*Required* — Default: `SOFTWARE\Sample`

Full path of the registry key, starting after the root hive (e.g., SOFTWARE\Sample)

## Details

- **Category:** Registry
- **Brick ID:** `Registry-Delete-Key`

## Raw JSON definition

**JSON**

```json
{
  "category": "registry",
  "description": "Deletes a specified registry key from the Windows registry. You can specify the root registry hive and the full path of the registry key to be deleted. This can be useful for cleaning up registry entries that are no longer needed or for removing keys that may be causing issues.",
  "developerVendor": "CapaSystems A/S",
  "displayName": null,
  "id": "Registry-Delete-Key",
  "name": "Delete Registry Key",
  "parameters": [
    {
      "allowManualInput": null,
      "defaultValue": null,
      "defaultValueObject": {
        "id": "HKEY_LOCAL_MACHINE",
        "name": "HKEY_LOCAL_MACHINE"
      },
      "description": "Select the root registry hive containing the key to delete",
      "id": "Registry_Root",
      "name": "Registry Root",
      "regExValidation": "",
      "required": true,
      "type": "ComboBox",
      "value": null,
      "values": [],
      "valuesObject": [
        {
          "id": "HKEY_LOCAL_MACHINE",
          "name": "HKEY_LOCAL_MACHINE"
        },
        {
          "id": "HKEY_CURRENT_USER",
          "name": "HKEY_CURRENT_USER"
        },
        {
          "id": "HKEY_CLASSES_ROOT",
          "name": "HKEY_CLASSES_ROOT"
        },
        {
          "id": "HKEY_USERS",
          "name": "HKEY_USERS"
        }
      ]
    },
    {
      "allowManualInput": null,
      "defaultValue": "SOFTWARE\\Sample",
      "defaultValueObject": null,
      "description": "Full path of the registry key, starting after the root hive (e.g., SOFTWARE\\Sample)",
      "id": "Registry_Key",
      "name": "Registry Key",
      "regExValidation": "",
      "required": true,
      "type": "TextBox",
      "value": null,
      "values": [],
      "valuesObject": null
    }
  ],
  "powershell": {
    "base64Encoded": true,
    "function": "RnVuY3Rpb2..."
  },
  "type": "powerbrick",
  "version": "2026.7.2.1"
}
```