To delete the Windows.old folder from an earlier installation of Windows, follow these steps: Advanced users can also use a command prompt to delete files and folders from an earlier installation of Windows Vista.ORE INFORMATION. To delete the Windows.old folder from an earlier installation of Windows, follow these steps: Advanced users can also use a command prompt to delete files and folders from an earlier installation of Windows Vista. To do this, follow these steps:
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If you have a pump attached to the system, make sure the pump is isolated. Irrigation systems should not run on house and pump water at the time because of the risk of contamination. When it comes time to use the pump, shut the valves on the backflow device and switch over.ake sure the drain valve located next to the irrigation shut off (sometimes it is just a hose bib type valve) is closed. You are now ready to turn in the water. Turn the main irrigation supply line on SLOWLY! You should hear water running for a few seconds then stop.