How to fix QuickBooks Error Code 15106 -Quick accounting experts

Tips to solve QuickBooks Error code 15106

QuickBooks Error Code 15106 usually appears when you try to download the latest payroll or software updates, and the system is unable to proceed because a required service is blocked, damaged, or restricted. This error often comes with messages like “The update program is damaged” or “Unable to open the update installer.” While it can seem frustrating, this problem is actually one of the easier QuickBooks update issues to fix once you know where to look.

Below are some practical, clear, and effective tips that you can follow step-by-step to resolve QuickBooks Error 15106 and get your updates running smoothly again.

1. Run QuickBooks as an Administrator

A lack of permissions is one of the top triggers of Error 15106.
Right-click your QuickBooks icon → choose Run as Administrator.
This simple step allows the update service to access folders that were previously blocked.

2. Stop or Disable the “Webroot Spy Sweeper” Program

If your computer uses Webroot or a similar security program, it may treat QuickBooks updates as suspicious.
To check:

Open Task Manager
Look for Spy Sweeper or Webroot services
End the task temporarily

Once the update finishes, you can turn it back on.

3. Clean Up the QuickBooks Update Folder

Sometimes the update files stored in the system folder become corrupted. Clearing them resets the download process.
Steps:

Go to: C:\Program Files\Intuit\QuickBooks\Components
Look for the DownloadQBXX folder
Rename it to DownloadQBXX.old

This forces QuickBooks to create a fresh update folder.

4. Repair QuickBooks Using the QuickBooks Tool Hub

The QuickBooks Tool Hub is extremely effective for system-level issues.
Open the Tool Hub → select Program Problems → choose Quick Fix My Program.
This repairs damaged files and refreshes critical services behind the scenes.

5. Restart the QuickBooks Update Service (QBUpdate.exe)

Sometimes the update installer gets stuck in a loop.
Opening the Services window and restarting the QuickBooks update service helps release the lock and start fresh.

6. Turn Off User Account Control (UAC) Temporarily

User Account Control can block the update installer from writing new files.
Lower the UAC settings → restart your computer → try the update again.
Remember to turn UAC back on afterward.

7. Perform a Selective Startup Mode

If background programs are interfering with the update, use Selective Startup:

Press Windows + R, type msconfig, hit Enter
Choose Selective Startup
Disable unnecessary services

Restart your computer
This gives QuickBooks a cleaner environment to complete the update.

8. Reinstall QuickBooks Using a Clean Install

If none of the simpler methods work, a completely clean install is the most reliable method.
A clean installation removes damaged program files and installs a fresh copy of QuickBooks while keeping your financial data safe.

Final Thoughts

QuickBooks Error Code 15106 is typically connected to blocked update permissions, damaged folders, or overprotective security software. By following the tips above—starting from the simplest fixes and moving toward deeper repairs—you can restore the update process without losing any data or productivity. Most users find that running QuickBooks as admin or clearing the update folder resolves the issue instantly, but the full list ensures you always have a path forward.

Source: Intuit