What about the file system converting in Windows Vista?

Please understand that Sony only guarantees laptops with factory default settings.

After converting the File System, it should fail to boot Windows. You have to restore the PC to the factory default settings.
Sony does not take any responsibility if you should meet any problems when converting the file system.
The Client will take full responsibility for any issue encountered when converting the file system.
Performing a full system backup before converting the file system is highly recommended.