Thank you for all the responses. Points taken about the uniqueness of each computer. However, I have been using TT for at least 10 years with no problem with installation. Its April 15 today*, and TT2020 is still un-installable (Problem with "Failed to extract archive"). Have bought new downloadable software, but I am still not sure if it will work. Just wondering if anyone knows whether I should remove the present TT2020 .exe, the related License and Orders WinRar Zip archives, and other related files before downloading the new software?
*Although I realized that the IRS has extended the deadlines to May 17th
