Welcome and thanks for dropping by the Community, @Vistaplaza1.
I'm here to help ensure to isolate the error you're getting so you'll be able to open your company file, and so you can back to your business right away.
Let's process troubleshooting steps to resolve this issue, but before doing so let's make sure that your QuickBooks is updated to the latest release. Here's how:
- From the QuickBooks Help menu, select Update QuickBooks.
- On the Update QuickBooks window, go to the Update Now tab. You can ignore the table because you don't need to change anything.
- (Optional) Put a checkmark in the box Reset Update box to erase all previous update downloads. (Note: This may increase the amount of time needed for the update.)
- Select Get Updates.
- Restart QuickBooks. When prompted, accept the option to install the new release.
Since you already forgot your admin password and it has been a long time that you're unable to get into your account, I recommend using the password reset tool.
I'm also adding an article below about fixing issues when opening QuickBooks Desktop for reference: Learn how to fix issues when you can't open QuickBooks.
Let me know if you have other concerns or questions with your QBDT software, you can always get back to us anytime.
