How to Empty the Recycle Bin in Windows Vista
You can empty your entire Recycle Bin on your Windows Vista desktop at any time. Deleting items forever from your Recycle Bin frees up hard drive space, and Windows Vista helps you out by deleting older items from your Recycle Bin automatically when your hard drive is low on space. You can trust this though: Emptying your Recycle Bin is much easier than hauling your real trash to the curb.
2Choose Empty Recycle Bin.
This option is on the menu that appears when you right-click the Recycle Bin icon.