How to delete the Windows.old folder on Windows 10 How to delete the Windows.old folder using Storage sense settings The easiest method to delete the Windows.old folder from your device is to use the Storage sense with these steps: Open Settings . Click on System . Click on Storage . Under the "Storage sense" section, click the Change how we free up space automatically option. Under the "Free up space now" section, check the Delete previous version of Windows option. Click the Clean now button. Once you've completed the steps, the folder with the previous installation of Windows 10 will no longer be available on your device. Powered by: Fredrick Ettie C.wizard