Troubleshooting Steps to Easily Rectify QuickBooks Not Opening If you are unable to access QuickBooks and the application keeps on throwing errors, then you might be getting the QuickBooks not opening error. This error message can prevent users from running the functions and can arise when the hard drive is corrupted, or the file name is too long. You need to tackle the QuickBooks Desktop won't open error by using the reliable solutions mentioned in this blog. If the detailed steps given below are taking longer than expected, or these solutions seem too technical, you can call our QB technicians at 1-855-856-0042 to get immediate help with the access issues in the app. QuickBooks Won't Open: Common Reasons and Scenarios The following main causes and possible triggers might lead to the QuickBooks Desktop not opening error The hard drive that stores your QuickBooks software program is not running correctly, and the drive might be damaged, corrupted, or lack proper space. Essential files, like the QBWUSER.INI file, might be facing issues, and these files might be damaged or corrupted, which can cause registration issues. Your QuickBooks Desktop installation process might be faulty or incomplete due to some improper, broken, or missing installation files in the PC. You are trying to access the company files in QuickBooks by using an invalid method, or the file you are opening might be unavailable. There might be some compatibility issues between QuickBooks and Windows OS, and your current QB version might be outdated or old. Detailed Methods to Terminate the Unable to Open QuickBooks Error If you are facing issues while running QuickBooks, you can fix the can't open QuickBooks Desktop error by using the effective steps given below Step 1 - Download the Recent Windows Updates from the Security Tab of the Control Panel The QB won't open error can be fixed by updating the Windows OS to the latest release from the control panel. Open the Control Panel from the Windows Start menu and choose the System and Security option to hit the Windows Update button. Hit the Check for Updates option and select Install to install the recent updates, then restart your PC to run the upgraded operating system and access QuickBooks. Step 2 - Activate the Quick Fix My Program Tool from the Tool Utility to Repair Application Issues You need to use the tool hub features to run the Quick Fix My Program tool and fix the application issues. Download the QuickBooksToolHub.exe setup file and install the utility to access the hub, then go to the Program Problems tab. Next, hit the Quick Fix My Program Tool option and initiate a QB repair process to detect and fix the application issues. Once the tool stops running, rerun QuickBooks to access the functions and check the status of the QB not opening error message. Conclusion You can easily eliminate the QuickBooks not opening error by using the reliable steps mentioned above. If these solutions seem ineffective or unsuccessful in fixing the issues, you can call our QB assistants at 1-855-856-0042 to get direct guidance with the error.