I have Quickbooks Pro 2010.  Last accessed on November 22, 2018 with no problems.  I tried to open it a couple days ago and asks for my password, which I entered.  DID NOT WORK so I tried the challenge question,  Still DID NOT Work.  Went on Live Chat and after given them remote access to my computer, and 2 hours and 45 minutes later I was told they needed to send me to the next level of support, but they don't support my version.  IF I were to upgrade they MAY be able to open my files but don't know for sure.  PLEASE HELP as I have over 10 years of files I now can't access and need to do year end bookwork with Accountant.  HELP! HELP! HELP!   thank you