I just successfully changed acer m5641 from vista to xp. I saw a post in her somewhere with someone asking for help. You need the xp 32 bit sata driver. The computer has a floppy plugin (just no floppy). So it is easy to use an old floppy drive and plug it in. There is even a 4 pin connector so you need an adapter to take the power to floppy drive. Then get all xp 32 bit files from here: http://global.msi.com.tw/index.php?func=do...mp;prod_no=1330 It is for MSI P6NGM-FIH but both use Nvidia mobo MCP73.
