I wanted to try out windows 7 so I followed a guide that was meant for Cr-48. I have a samsung series five chromebook. Before I tried out windows7 though, I already had ubuntu installed. The first step to get windows 7 told me to download Insyde H2O BIOS. I followed the steps exactly here, http://cr-48.wikispaces.com/Flash+BIOS, and restarted my chromebook. Here is exactly what I did to my samsung chromebook: The following is exactly what I did to my chromebook: -Log in to Chrome OS and press ctrl + alt + → (→ is the forward arrow where the F2 key would normally be) -Type chronos and press enter -Type sudo su and press enter -Type flashrom -r backup.bin and press enter -Type cp backup.bin /home/chronos/user/Downloads and press enter -Press ctrl + alt + ← (the ← is the back arrow where the F1 key would normally be) to return to the normal Chrome OS interface -Go to Gmail (or whatever email you use) and compose a new message addressed to yourself -Select "Choose a File to attach," select the folder "File Shelf," select the file backup.bin and click "Open" -Send the message. Keep this message safe - you'll need it if you want to restore your Cr-48 to its original state. -Download the InsydeH2O BIOS for the Cr-48 here: cr48.bin.tar.gz -Press ctrl + alt + → -Type tar -xvzf /home/chronos/user/Downloads/cr48.bin.tar.gz -C /home/chronos and press enter -Type flashrom -w /home/chronos/cr48.bin and press enter an Now I keep getting the frowny face that says that the Chrome OS is damaged and that I need to insert a recovery disk. I can't skip this screen or do anything until I insert the recovery disk. I made the Chromebook recovery drive on three different 16 GB USBs from following the google recovery tutorial and each time I plug them into my chromebook and wait, my chromebook tells me that ""An unrecoverable error occured during recovery! Please try again or try a newer recovery image." My chromebook also tells me the recovery reason is 0x03 whatever that means. Please help I don't know what to do now.