Get your taxes done using TurboTax

I have used TT since 2010 and saved every return on my computer and external hd. When I installed TT2020 it erased all my previous tax returns and my two children's also. The program is still there but no returns. I'm having to type everything in from scratch and I cannot believe this. Does anyone know how to fix this? I tried everything in all the threads like forced search but nothing works. TT needs to address this **bleep** problem!