QuickBooks Error C=60 - License Data File Read Failure

Last reviewed 2026-09-04 3 min read

QuickBooks Error C=60 appears when it cannot read the license data file, blocking access to your company file; see the cause and steps to restore use.

QuickBooks Error C=60 stops you from opening a company file because the program cannot locate or read its license data. This guide explains the message, the underlying meaning, common triggers, and a clear fix process. Follow the steps to regain access and avoid future interruptions.

What the error message says verbatim

Error C=60: Unable to read the license data

What the code means

The code indicates that QuickBooks failed to load the file that stores your product license information. Without this file the software cannot verify your registration and therefore blocks all company file operations. The error does not damage your accounting data; it only prevents the program from starting correctly.

What triggers it

Most often the error appears when the license data file is missing, corrupted, or blocked by security software. Other triggers include a damaged Windows user profile, an incomplete QuickBooks installation, or a hard‑disk error that prevents the file from being read. In each case the program cannot locate the required license information at startup.

HOW TO FIX IT

1. Restore the license data file from a recent backup

Close QuickBooks completely.
Navigate to the folder where QuickBooks stores license files (usually C:\ProgramData\Intuit\Entitlement Client\v8).
If the folder is empty or the file EntitlementDataStore.ecml shows a size of zero, copy the same file from a clean backup or from another workstation where QuickBooks runs without error.
Restart QuickBooks and try to open your company file.

2. Repair the QuickBooks installation

Open Windows Control Panel and choose Programs and Features.
Select QuickBooks Desktop, click Change, then choose Repair.
Allow the wizard to replace missing or damaged program files, then restart the computer.
Launch QuickBooks and verify that the error no longer appears.

3. Adjust antivirus or security software settings

Open your antivirus console and locate the exclusion or trusted‑files list.
Add the entire QuickBooks installation folder (typically C:\Program Files\Intuit\QuickBooks <year>) and the ProgramData\Intuit\Entitlement Client\v8 folder to the exclusion list.
Save the changes, restart QuickBooks, and test access to your company file.

4. Create a new Windows user profile and test QuickBooks

Log out of your current account and log in with a different Windows user that has administrative rights.
Install QuickBooks if it is not already present, or launch the existing installation.
Attempt to open a sample company file. If the error does not appear, the original profile may be corrupted; migrate your data to the new profile or repair the profile using Windows tools.

5. Perform a clean reinstall of QuickBooks

Uninstall QuickBooks via Programs and Features.
Rename the leftover C:\Program Files\Intuit and C:\ProgramData\Intuit folders to Intuit_old and IntuitData_old respectively.
Reboot the computer.
Download the latest QuickBooks Desktop installer from a trusted source and run a fresh installation.
Register the product using your license key and open your company file.

How to prevent it recurring

Schedule regular backups of both your company file and the QuickBooks license folder; store copies on an external drive or secure cloud location.
Exclude QuickBooks program and data folders from real‑time scanning in your antivirus software to avoid accidental quarantine of license files.
Keep Windows and QuickBooks updated to the latest service packs; updates often fix file‑handling bugs that can corrupt license data.
Periodically run the QuickBooks Verify and Rebuild utilities to detect early signs of data file issues before they affect startup.
Avoid abrupt shutdowns or power losses while QuickBooks is running; use a UPS if possible to protect against unexpected interruptions.