KB87591
Published: July 28, 2020
Revision: 2.0

PAC Display Runtime May Take a Long Time to Start and Open Project


Applies To:

PAC Display

Versions Affected:

All versions


Symptoms:

This is an information KB article. The issue is caused by Windows Defender and is not a PAC Display bug. Only a handful of customers have been affected.

PAC Display Runtime may appear to hang or take a long time (a few minutes to half an hour) to load the project and start updating data. If this occurs, the user interface will not be responsive until the startup process completes.

The cause of the issue can be either an older version of Windows Defender or particular Windows Defender settings (see WORKAROUND section).

Workaround:

Turn off Windows Defender Real-time scan. If you cannot turn off real-time scanning, Create an exception in Windows Defender for the folder where the log files are or will be located:

  1. From the Windows Taskbar, click Start and find the Windows Security app. If you can't find the Windows Security app, click on the Search tool in the Windows Taskbar and type "Security", then select the Windows Security app.
  2. In Security at a Glance, click on App & browser control.
  3. Scroll Down to Exploit Protection Settings and click Exploit Protection Settings.
  4. Click on Program Settings, to the right of System Settings.
  5. Click on the + (plus sign next to Add Program to Customize), then select Add by Program Name.
  6. Type DisplayR.pro.exe or DisplayR.Basic.exe (as appropriate) in the field. Click Add.
  7. In the Program Settings: DisplayR.pro.exe window, do the following for every setting in that window:
    1. Click the Override system settings check box.
    2. Click on the slider to turn off the setting.
  8. Click Apply.
  9. Close Windows Defender

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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