Quickbooks desktop won't open- Follow simple steps to resolve QuickBooks Desktop not opening are:
1 Close the QBW32.exe process.
2 Remove the QuickBooks application
3 Restart your QuickBooks desktop
Once you have restarted your PC, you will have a new Desktop. Now you can retry to open your QuickBooks after restarting the Desktop and see if it works.
Also, Read https://www.accountiod.com/fix-quickbooks-desktop-error-3371-status-code-11118/
