Newer asus laptops (the ones sold under Vista) are a little tricky to upgrade to windows 7, they have a small hidden partition that handles the boot and recovery processes.
Once you format your C: to install 7 you will lose some files related to the recovery application. The boot handler in the small hidden partition will try to check the recovery files because it assumes that your windows installation is corrupted, but some file are missing, and that will result in a big red ERROR written on the screen, it looks pretty much like this one.
to fix this do the following.
- Insert your window 7 CD and chose to repair your windows installation.
- Open the command prompt.
- write “bootsect /nt60 c: /mbr”
everything should work fine.
what you did was to rewrite the master boot records to load windows7 and ignore loading the recovery process