Problems running TinyXP on my flashdrive

[Silicate Wielder]

Okay, I managed to install TinyXP onto my flash drive, its a version of windows XP that has been stripped to the bone, and I can get it to the boot loader but fter a few seconds I get an error saying that my hard drive is corrupted or something and that there may be a virus. Does anyone know how I can fix this issue? My sister wants to downgrade to XP because windows 7 is causing all kinds of problems on here Acer AspireOne.

[Mirage]

Here's the deal: download a utility called Hirens boot cd. It's got oodles of cool stuff. After you get the ISO image, use a program to install ISO images to the flash drive. Then have her plug in the drive and choose the "Mini Windows XP" option. Enjoy :)