I have income tax files that I had Encrypted with your program from 2009 thru 2016. This was all done on my desktop. I last had the 2016 tax file opened on 4/3/2017. I was always able to open all of those tax files with no issues. After I purchased my new laptop in April, after the 3rd is when I was unable to open. I ended up upgrading to the Premium in hopes of being able to open. Today I decrypted that file and when attempting to open, it gave me this message – see screen shot. Am I able to revert back to the old free program and see if it/they will open. I am getting quite frustrated with AxCrypt.