Hi, Thank you for writing to us! We would like to inform you that the Inspiron 1525 is not tested for windows 10 and we would not suggest that you upgrade the version of windows  Kindly private message the service tag and email address. Thanks Robin
Hi,I have been looking for a solution to upgrade my Inspiron 1525 laptop, preinstalled with Vista Home Premium 32 bits when I bought it.The target is to prepare path to upgrade to Windows 10.I need Windows 7 or 8 to start with.I could not find a way on Dell website. Many thanks in advance !Isabelle
Upgrade for my Inspiron 1525 Laptop from Windows Vista Home Premium 32 bits to 
Windows 7 or 8 and then to Windows 10