I copied files from a hard drive with XP to a folder on a Windows 7 machine so I could reload XP. I had to click to gain access to copy (normal). But the files copied like they were greyed out. They will open ok on the Win 7 machine & copy to a flash drive, but when the flash drive is inserted into the XP machine the files don't show inside the folders. The folder properties shows the correct size indicating the files are present, but opening the folder just gives a blank page. I've tried changing sharing, permissions, ownership. The files will open off the flash drive on the Win 7 machine.