|I have never tried it but in xp the solution would be to use a live cd to copy a prior or duplicate hive over. Othewise you would then go and try to install xp and use the install "repair" feature to basically check files and return to original xp's hives. Data and programs stay but since registry is wiped out you would then have to re-install programs. |
There might still be a way to start to install Vista and at some point choose repair instead of the boot and choose repair option.
Wonder of you can use system restore point?? That might be a great way to try.
You can try to recover hive live.
You can use live cd to copy off data and so clean install.
Playing to the angels
Les Paul (1915-2009)