Howdy folks, there's a problem going on the net about people downgradin' to xp. I have this friend that bought an Acer laptop and it came with vista starter. The thing is that he wants to downgrade to XP because them manufacturer people put a 512mb ram memory. When I ran the XP disc, the thing won't recognize the Hard Drive. I tried deleting the Vista Partition and retry the XP installation CD, and I ain't got nothin' but the same darn error message. I've heard about installing an external usb floppy, loading some drivers, dual boot, etc. but I bet there's an easy way since I've seen people downgrading them OS's. Does anyone know which is the easiest way to solve this problem? Thank you EDIT: Well, I got this here friend that told me the easiest way to solve this problem. Go on like this: 1) Turn on the computer and quickly press what you need to press to access BIOS. 2) All BIOS have slight differences between manufacturer, so look for an option that says something like SATA Mode. Switch to IDE mode, you can several options but this one should be there. 3) Save changes and exit BIOS, restart computer and let it boot 'til windows appears. 4) Wait for OS to install the drivers, it will tell you to restart computer once it's done. Restart. 5) load windows once more to see if it works ok, if so turn your computer off again. 6) turn on the computer and access BIOS once again and set the boot sequence to CD as first boot device. SAve changes and exit. 7) insert the Win XP disc and Proceed with its installation. Hope this works to y'all See ya!