hiii Smith,  If you’re facing issues with QuickBooks Desktop where multiple windows are not opening, there are several potential reasons for this problem. Here are some troubleshooting steps you can follow to address the issue:

1. Update QuickBooks:

• Ensure that your QuickBooks Desktop software is up-to-date. QuickBooks updates often include bug fixes that may resolve such issues.

2. Restart QuickBooks:

• Close QuickBooks completely and then reopen it. Sometimes, a simple restart can resolve minor glitches.

3. Check for Multiple Instances:

• Make sure that only one instance of QuickBooks is running on your computer. If multiple instances are open, it might cause conflicts.

4. Run QuickBooks as Administrator:

• Right-click on the QuickBooks Desktop icon.
• Choose “Run as administrator.”
• This step can sometimes bypass permission issues that might prevent certain features from working correctly.

5. Check System Resources:

• Verify that your computer has sufficient resources (RAM, CPU, etc.) available to run QuickBooks with multiple windows. Running too many applications simultaneously can lead to performance issues.

6. Corrupted Company File:

• The issue could be related to a specific company file. Try opening a different company file to see if the problem persists.

7. Check for QuickBooks Processes:

• Open the Task Manager (Ctrl + Shift + Esc) and check for any QuickBooks processes running in the background. End all QuickBooks-related processes and then reopen QuickBooks.

8. Recreate QBWUSER.INI file:

• Close QuickBooks.
• Locate the QBWUSER.INI file in the installation directory.
• Rename the file to QBWUSER.INI.old.
• Restart QuickBooks.

9. Verify QuickBooks Installation:

• If the issue persists, you may need to repair or reinstall QuickBooks.
  • For repair: Go to “Control Panel > Programs > Programs and Features,” select QuickBooks, and choose “Repair.”
  • For reinstall: Uninstall QuickBooks and then reinstall it using the latest version.

10. Check for Windows Updates:

• Ensure that your operating system is updated to the latest version. Windows updates can address compatibility issues.

11. Contact QuickBooks Support:

• If none of the above solutions work, it’s advisable to contact QuickBooks support for further assistance. They can provide specific guidance based on your system and the version of QuickBooks you are using.