# DisableFastLaunch
<a name="API_DisableFastLaunch"></a>

Discontinue Windows fast launch for a Windows AMI, and clean up existing pre-provisioned snapshots. After you disable Windows fast launch, the AMI uses the standard launch process for each new instance. Amazon EC2 must remove all pre-provisioned snapshots before you can enable Windows fast launch again.

**Note**  
You can only change these settings for Windows AMIs that you own or that have been shared with you.

## Request Parameters
<a name="API_DisableFastLaunch_RequestParameters"></a>

The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see [Common Query Parameters](CommonParameters.md).

 **DryRun**   
Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is `DryRunOperation`. Otherwise, it is `UnauthorizedOperation`.  
Type: Boolean  
Required: No

 **Force**   
Forces the image settings to turn off Windows fast launch for your Windows AMI. This parameter overrides any errors that are encountered while cleaning up resources in your account.  
Type: Boolean  
Required: No

 **ImageId**   
Specify the ID of the image for which to disable Windows fast launch.  
Type: String  
Required: Yes

## Response Elements
<a name="API_DisableFastLaunch_ResponseElements"></a>

The following elements are returned by the service.

 **imageId**   
The ID of the image for which Windows fast launch was disabled.  
Type: String

 **launchTemplate**   
The launch template that was used to launch Windows instances from pre-provisioned snapshots.  
Type: [FastLaunchLaunchTemplateSpecificationResponse](API_FastLaunchLaunchTemplateSpecificationResponse.md) object

 **maxParallelLaunches**   
The maximum number of instances that Amazon EC2 can launch at the same time to create pre-provisioned snapshots for Windows fast launch.  
Type: Integer

 **ownerId**   
The owner of the Windows AMI for which Windows fast launch was disabled.  
Type: String

 **requestId**   
The ID of the request.  
Type: String

 **resourceType**   
The pre-provisioning resource type that must be cleaned after turning off Windows fast launch for the Windows AMI. Supported values include: `snapshot`.  
Type: String  
Valid Values: `snapshot` 

 **snapshotConfiguration**   
Parameters that were used for Windows fast launch for the Windows AMI before Windows fast launch was disabled. This informs the clean-up process.  
Type: [FastLaunchSnapshotConfigurationResponse](API_FastLaunchSnapshotConfigurationResponse.md) object

 **state**   
The current state of Windows fast launch for the specified Windows AMI.  
Type: String  
Valid Values: `enabling | enabling-failed | enabled | enabled-failed | disabling | disabling-failed` 

 **stateTransitionReason**   
The reason that the state changed for Windows fast launch for the Windows AMI.  
Type: String

 **stateTransitionTime**   
The time that the state changed for Windows fast launch for the Windows AMI.  
Type: Timestamp

## Errors
<a name="API_DisableFastLaunch_Errors"></a>

For information about the errors that are common to all actions, see [Common client error codes](errors-overview.md#CommonErrors).

## See Also
<a name="API_DisableFastLaunch_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ec2-2016-11-15/DisableFastLaunch) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/DisableFastLaunch)