To get started click on Start->All Programs->Accessories->System Tools->Scheduled Tasks

Click on Create Task

Enter the task name and description. Check "Run with highest privileges.

Select the Triggers tab. Click on New.

Set it to Daily and then set the start time. Click Ok.

Select the Actions tab. Click on New.

Click on Browse and select The Cleaner (default is C:\Program Files\The Cleaner\cleaner6.exe) Add arguments "/smart". Click Ok.

Click Ok.