Published: September 17, 2020
PAC Display Runtime may take a long time to start and open a project
NOTE: This KB article is for informational purposes. This issue is not a defect in PAC Display.
If you use Windows 10 and are running Windows Defender, you may observe that PAC Display Runtime appears to hang or take a long time (a few minutes to half an hour) to load a project and start updating data. During this time, the user interface does not respond. After the start up process completes, some windows may not update with the appropriate data; minimizing and then restoring the window causes a redraw of the window and the expected data to display.
The cause of this issue can be either an older version of Windows Defender or particular Windows Defender settings (see Workaround section).
To resolve this issue, you will need to do one or both of the following:
- Disable or modify real-time scanning in Windows Defender
- Adjust settings in the Windows Security app
The instructions for how to do this depend on the version of Windows running on your computer. Microsoft has released several versions of Windows 10 since its initial release in July, 2015. (You can read an overview of the revision history in this article
.) Microsoft sometimes changes the names, locations, and defaults of security settings. The instructions below reflect the names, locations, and defaults in Windows 10 version 2004.
Disable or modify Windows Defender real-time scanning
If you cannot disable real-time scanning, create an exception in Windows Defender for the folder where the log files are or will be located:
- 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.
- In Security at a glance, click Virus & threat protection.
- Under Virus & threat protection settings, click Manage settings.
- Under Exclusions, click Add or remove exclusions.
- Click Add an exclusion and Select File.
- Navigate to the PAC Project programs folder. (The default location is
C:\Program Files (x86)\Opto22\PAC Project 10.3.)
- Select DisplayR.pro.exe or DisplayR.basic.exe.
- Click Open. If Windows prompts you to verify that you want to allow this change, click Yes.
- Click Add an exclusion and Select Folder.
- Navigate to your PAC Display project folder.
- Click Select Folder.
- Close Window Security by clicking on the X on the upper-right corner of the Windows Security window.
Adjust settings in Windows Security App
- 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
- In Security at a glance, click on App & browser control. (If you see a "Turn on" button underneath App & browser control, you can ignore it.)
- Scroll down to Exploit protection and click Exploit protection settings.
- Click Program settings (to the right of System settings).
- Click on the plus sign (+) next to Add Program to Customize, then select Add by program name.
- Type DisplayR.pro.exe (if you are using PAC Display Professional) or DisplayR.basic.exe (if you are using PAC Display Basic) in the field. Click Add.
- In the Program settings: DisplayR.pro.exe window, do the following for every setting in that window (there are about 20 settings):
- Click the Override system settings check box.
- Click on the slider to turn off the setting.
- Click Apply. If Windows prompts you to verify that you want to allow this change, click Yes.
- Close Windows Security by clicking on the X on the upper-right corner of the Windows Security window.
To resolve this issue, review the instructions in the Workaround section.
Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.
OPTO 22 DOES NOT WARRANT THE COMPLETENESS, TIMELINESS, OR ACCURACY OF THE DATA CONTAINED IN THIS OPTOKB ARTICLE AND MAY MAKE CHANGES THERETO AT ANY TIME AT ITS SOLE DISCRETION WITHOUT NOTICE. FURTHER, ALL INFORMATION CONVEYED HEREBY IS PROVIDED TO USERS 'AS IS.' IN NO EVENT SHALL OPTO 22 BE LIABLE FOR ANY DAMAGES OF ANY KIND INCLUDING DIRECT, INDIRECT INCIDENTAL, CONSEQUENTIAL, LOSS PROFIT, OR DAMAGE, EVEN IF OPTO 22 HAS BEEN ADVISED ON THE POSSIBILITY OF SUCH DAMAGES.
OPTO 22 DISCLAIMS ALL WARRANTIES WHETHER EXPRESSED OR IMPLIED WITH RESPECT TO THE INFORMATION (INCLUDING HARDWARE, SOFTWARE, AND/OR FIRMWARE) PROVIDED HEREBY, INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTIBILITY, AND NON-INFRINGEMENT. Note that certain jurisdictions do not sanction the exclusion of implied warranties: thus, this disclaimer may not apply to you.
Copyright © 2023 Opto 22. All rights reserved.