After updating to Windows 10, you might have trouble opening QuickBooks. This is a common problem that many QuickBooks users face, preventing them from accessing their QuickBooks Company file (QBW). There are a few workarounds that may help you resolve the issue before contacting a qualified professional or Intuit support. But, before we get into these workarounds, let's first figure out.

Solution: Start the QuickBooks Installation Diagnostic Tool.
If none of the workarounds work for you, using QuickBooks built-in tools such as the QB Install Diagnostic Tool may help. The detailed steps are as follows:

Make sure to download and install QuickBooks Tool Hub on your machine before continuing with the steps below.
Start QuickBooks Tool Hub.
Click the 'Installation Issues' tab in the tool hub window.
Select the 'QuickBooks Install Diagnostic Tool' option.
Read More: https://qbtoolhub.com/quickbooks-wont-open/