Not sure how you "lose" installed programs due to a power outage...did your whole hard drive get corrupted or something?

You can download the software from your online Intuit account.

https://www.intuit.com/sign-in/

Scroll down to ProSeries and Log In.   You should find the years in the Previous Years Downloads area.

@Just-Lisa-Now- if the power keeps flickering on and off, which can happen if a tree falls on a telephone wire or something similar to this, then this can end up destroying the entire hard drive. Even if you have a surge protector built-in on the breaker box and a surge strip protector, it may not help when the power keeps flickering and the computer keeps going on and off. That is why it may be a good idea to shut the computer off during a lightning storm or something similar. Just my opinion