Windows 10 Upgrade Leaves Behind Old OS – Delete it to free up space Date October 29, 2015 Author By kadmin Category Windows 10 In Windows 10: Type storage in the search box Click on your C drive Scroll down to click Temporary Files Delete Previous Version of Windows Tags: delete previous version, Windows 10 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ