Hi FEl44, Welcome to the Community, You can reinstall the Windows using media center version 2005 disc on Inspiron 1505/6400. After reinstalling the windows you will need to install the drivers which can be downloaded from www.support.dell.com. To reinstall Windows follow Step 4  and than Step 5 (to install the drivers in the correct order) from the link below: support.dell.com/.../document Hope this helps, Thank You Roshan
High everyone,I need your help downgrading from Inspiron 1505/6400 with vista home premium to xp home, or xp media center version 2005 with update rollup. When I used the media center version 2005 with update rollup to reinstalled dimension 8200 desktop,this dvd installed everything including the drivers, I'm hoping it can do the same without problems with Inspiron 1505/6400 after I1505/6400 hdd is wipe clean. Is this possible? How do I start and finish? Thanks in advance 
vista downgrade to xp