For days I have been going through the QuickBooks Won’t Open, and nothing really helped. A professional suggested me these steps that worked it out-
1. Press the Ctrl + Alt + Del keys on your keyboard.
2. Select the Task Manager.
3. Tap on the Processes button.
4. Locate QuickBooks.
5. Right-click on all its tasks.
6. Choose to End Process.
7. If you are prompted with a confirmation dialogue box, select End All Processes.
8. Reopen the QuickBooks application.
9. Hit the Repair QuickBooks tab.
It would help you have plenty of solutions available to try. Read them carefully. You can also connect with the certified pro-advisors at 1.800.579.0391
Symptoms of QuickBooks Won't Open error.
Solution 1: Close QBW32.exe process.
Solution 2: Renaming the QBWUSER. ...
Solution 3: Suppress QuickBooks Desktop Installation.
Solution 4: Repair QuickBooks Desktop Installation if done incorrectly.
Solution 5: Create a new Windows Admin User.
Solution 6: Restart the Desktop.