QuickBooks is a powerful accounting software that simplifies financial management for businesses of all sizes. However, like any software, QuickBooks can sometimes encounter errors that disrupt your workflow. One common issue users face is QuickBooks Error 15105. This error typically appears when QuickBooks fails to update or install a payroll update. Understanding the causes behind this error and how to resolve it quickly can help you get back to managing your finances with minimal interruptions.

What is QuickBooks Error 15105?

QuickBooks Error 15105 is a common update-related error that occurs when QuickBooks fails to download or install updates successfully. It usually appears with the message:

“Error 15105: QuickBooks is unable to verify the digital signature”

This error can arise during the QuickBooks software update process, particularly with payroll updates or QuickBooks Desktop updates.

Read more:- QuickBooks Payroll Update Not Working

Common Causes of QuickBooks Error 15105

Several factors can trigger QuickBooks Error 15105. Some of the most common causes include:

  1. Incorrect or incomplete installation of QuickBooks: If QuickBooks wasn’t installed properly or is corrupted, it can trigger update errors, including Error 15105.

  2. Antivirus or firewall interference: Sometimes, security software can block QuickBooks from accessing the necessary update servers, causing this error to pop up.

  3. Damaged or corrupted files: If the QuickBooks installation files or the company data files are corrupted, it can disrupt the update process.

  4. Internet connection issues: A weak or unstable internet connection may prevent QuickBooks from downloading and installing updates successfully.

  5. Admin rights or permission issues: If QuickBooks doesn’t have the necessary permissions to perform updates, Error 15105 may occur.

How to Fix QuickBooks Error 15105?

To resolve QuickBooks Error 15105, follow these troubleshooting steps:

1. Run QuickBooks as an Administrator

  • Close QuickBooks and right-click on the QuickBooks icon.
  • Select Run as Administrator to grant QuickBooks the necessary permissions.
  • Try to update QuickBooks again to check if the error is resolved.

2. Temporarily Disable Antivirus or Firewall

  • Temporarily disable your antivirus or firewall software to ensure that it’s not blocking the update.
  • After disabling, try updating QuickBooks again.
  • If the update works, re-enable your security software after the update is complete.

3. Use the QuickBooks Update Tool

  • QuickBooks provides a tool that can fix many update issues, including Error 15105.
  • Download and run the QuickBooks Tool Hub from the official Intuit website.
  • Once installed, open the tool and click on Program Problems and then select QuickBooks Update.

4. Check Internet Connection

  • Make sure your internet connection is stable and strong.
  • If you’re on a Wi-Fi network, consider switching to a wired connection for better stability.

5. Repair QuickBooks Installation

  • If QuickBooks installation is corrupt, you may need to repair it.
  • Go to Control Panel > Programs and Features > QuickBooks > Repair.
  • After repairing, restart your system and try to update QuickBooks again.

6. Delete the QBUpdate.ini file

  • This file contains information about QuickBooks updates, and deleting it can sometimes resolve update errors.
  • Navigate to your QuickBooks installation folder, locate the QBUpdate.ini file, and delete it.
  • Restart your system and try to update QuickBooks again.

Read more:- QuickBooks error 15100

Conclusion

QuickBooks Error 15105 can be frustrating, especially when it disrupts your updates. However, with the right troubleshooting steps, you can resolve the issue quickly and get back to managing your business finances seamlessly. Whether it’s adjusting settings, repairing the software, or simply running QuickBooks as an administrator, there are multiple solutions to this problem.

If none of the above fixes work or the error persists, you may need to reach out to QuickBooks support for advanced troubleshooting.

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