I am now having this issue as of this morning. Have not previously had this issue but I have literally spent the better portion of the last 6.5hrs trying to resolve my issue. I have run QB File Doctor, I have run both Quick Fix my Program and Quickbooks Program Diagnostic Tool and Quick Fix my File from Quickbooks Tool Hub, I have tried copy and pasting my QB company file from the folder I had it in over to the desktop and tried opening it that way, I have tried updating my company file, I checked to see if I was on the current version of Windows(Currently on Windows 10 Ver 21H1, reluctant to update to Windows 11 as not sure if it’s compatible with QB desktop premier 2019).  I have done just about everything I’ve seen/found on the QB community short of creating a new Windows admin user on my computer or deleting and reinstalling QB. I did try opening a sample company file on Quickbooks and was able to get that to open without crashing. Also I might mention that on the “No Company File Selected” screen where you can select the company file you want to log in to, when I click on our company file(the same one we’ve always used), rather than going to the login screen for that company file, I get a pop-up that says “Quickbooks can’t find your company file. Choose the ‘Open or Restore Company…’ command from the ‘File’ menu to locate your company file.  Error Code: Company File Not Found.”. So I go to the “Open or Restore Company File” option, find my company file, select and open it and then when Quickbooks prompts me to I enter the admin password and it starts to load for 2 seconds and then immediately crashes as it has been all morning.  I went to the support link that was shared in this thread and tried to open a chat but for whatever reason, chat is unavailable(it’s only 2:45pm at the time of writing this, Message support hours are listed as 6a-6p so it should be working but it’s not which is inconvenient as _____(fill in the blank with your word of choice) since I need help ASAP). I am beyond infuriated with Intuit/QB Support and product at this point. 

We have the software only, we did not opt for the annual subscription back in 2019 when we purchased our software… would it be if any benefit/help to me to just go ahead and get the 2020 or 2021 Desktop Premier software? Could that possibly solve my issue?

HELP!!!