Hello there, Mrs Boyko.
Thank you for reaching out to us regarding the issue you're experiencing with QuickBooks Desktop (QBDT) 2020.
In some cases, issues like the one you're experiencing can be related to using a discontinued version of QuickBooks. QuickBooks regularly releases updates and discontinues older versions, which can lead to compatibility problems with newer operating systems and software.
Since QuickBooks 2020 is no longer supported, upgrading it to a supported version of QuickBooks Desktop is our potential solution: You can check this article on how to upgrade to a newer version of QuickBooks Desktop from within the program: Upgrade QuickBooks Pro, Premier, or Enterprise.
But before doing so, please make sure to create a backup company file to secure your data if you ever encounter problems. It's also important to ensure that your new computer meets the system requirements for QuickBooks.
Furthermore, here are some quick articles that can sort out:
Feel free to reach out to us again if you have further questions about moving QuickBooks and company files. We're always ready to help you.
