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@bhasupanchal wrote:

Strange - day before yesterday - i followed the suf=geested steps and was able to open both 2019 and 2020

Today when I tried opening it - it reverted back to the same problem !!!!!!! Somebody at INTUIT must resolve this so we do not have to go through this pain !!

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If it worked day before yesterday, then it does not sound like an INTUIT issue. Try turning off your AntiVirus program - That would be my guess as to what is hanging it up. 

As stated by others, this is a user community and 99.9% of the answers you get are from users. The issue you have needs support, which means a long phone call.