I think you are a little bit confused here. a Licence is not the same as an
Home and Student is licensed for THREE concurrent machines. You can
re-install on one of those machines (or all if you have to) as MANY times as
The only downside is that if the time period between re-installations is too
short, you may have to use telephone activation.
Asking a question?
Please tell us the version of the application you are asking about,
your OS, Service Pack level
and the FULL contents of any error message(s)