It is possible to automatically run a Disk Cleanup!!
This is achieve through the use of the "Scheduled Tasks" tool of Windows 7
To launch a Disk Cleanup automatically
1 Go to Start/All Programs/Accessories/System Tools/Task Scheduler.
2 In the "Task Scheduler" via the "Action" menu, Click (Create a basic task).
3 In the wizard "Create basic task" window enter the name of the task.
Which in our case will be: Disk Cleanup and click Next.
4 In the window of the "Trigger Job" select a box
"Monthly" and click Next.
5 In the "Monthly" tab
- Start> Select hour.
- Month> Select monthly or will be executed.
- Days> Select a day of your choice.
- Click Active> Select the day of the week and which week of the month
(For example the first Sunday of the month)
Then click Next and leave the Scheduled Task.
Now this will clean up your PC each month at the date, time indicated.