Tried all means but have not been successful. The history shows that the task has been run successfully but with return code 1 Task Scheduler successfully completed task "\Backup Unsealed Management Pack" , instance "{xxxxxxxxxxxxxxxxxxxxxxxxxxxx}" , action "Powershell.exe" with return code 1. Kindly assist Command-line parameters for CCleaner operation. There are three parameters you can use when running CCleaner, as follows. You can use them in batch files, scripting, shortcuts, or the Task Scheduler to automate CCleaner operation. For example, you could set CCleaner to run automatically every day at 3:00am.