Hi scififreak. Welcome to NST.
No, the Windows Vista Anytime Upgrade disk is only for upgrading Vista, not for repairing it. You will need to download and burn to a CD with ImgBurn our recovery disk found here > Windows Vista Recovery Disc Download The NeoSmart Files
Repairing Vista will not delete any files. Rather, it will create its own needed boot files if it detects they do not exist.