Error -2146824582 After Calibration Executive Upgrade to 2026 Q1

Issue Details

I upgraded Calibration Executive from 2025 Q1 to 2026 Q1. After the upgrade, I started receiving an error message when attempting to use the application. Additionally, I upgraded the operating system from Windows 10 to Windows 11 before encountering this issue. 

Error -2146824582 occurred at NI_Database_API.lvlib:DB Tools Open Connec (String).vi->cex_CheckOrConvertReportDatabase.vi->CalibrationReportsDB.lvclass:InitializeDB.vi->CalibrationReportsDB.lvclass:ProcModelInitDB.vi

At step InitDB ClassADO Error: 0x800A0E7A

Exception occurred in ADODB.Connection: Provider cannot be found. It may not be properly installed.

Solution

According to the Calibration Executive User Manual, in the Calibration Executive 2026 Q1 Changes section, upgrading to Calibration Executive version 26.0 or later removes all deprecated Microsoft Access Database Runtime and Microsoft Access Database Engine versions and installs Microsoft 365 Access Runtime automatically.

If this process does not complete as expected, the issue may be caused by residual components or corrupted files from previous installations.

1- Verify Microsoft 365 version

• • Confirm that an up-to-date version of Microsoft 365 is installed.

Note: If you confirm that you have an old version of Microsoft Access installed, please uninstall Microsoft 365 components before reinstalling Calibration Executive.

2- Perform a clean reinstallation.

• 1. Uninstall Microsoft 365 (Uninstall Microsoft 365 or Office from a PC)
  2. Uninstall all NI software and drivers.
  3. Restart the system.
  4. If having Microsoft 365 is required for your setup, please reinstall the latest version.
  5. Reinstall Calibration Executive and any additional drivers required.