PC System Requirements

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 1 GHz 32-bit (x86) processor or 1 GHz 64-bit (x64) processor

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Operating System

Any of the following, up to date with the most current
Microsoft service pack:

  • Microsoft Windows 10

  • Microsoft Windows 8.1

  • Microsoft Windows 7 with Service Pack 1

  • Microsoft Windows Vista with Service Pack 2

  • Microsoft Windows XP with Service Pack 3

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Prerequisite Software

Microsoft Office

The desktop version of any one of the following in a Professional or Business Edition, licensed and up-to-date:

  • Office 2019

  • Office 2016

  • Office 2013 with Service Pack 1

  • Office 2010 with Service Pack 2

  • Office 365 with any one of the above installed as desktop software


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Word, PowerPoint and Excel must all be:

  • the same Office version

  • Personalized with a User Name and Initials

  • Opened at least once prior to installing Great Circle Learning software

Great Circle Learning software will not run with Developer editions of Office or Cloud-only versions of Office 365.

Microsoft .NET Framework 4.6.1 or higher

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Microsoft Visual Studio 2010 Tools
for Office Runtime

Sometimes Microsoft Visual Studio for the Office System Runtime is not installed even though it is part of the base Office package. Because this software is required in order to install Great Circle Learning software you may be prompted to allow it to install; if so, please allow. To verify that you have this necessary program:

  1. Click Start > Control Panel > Programs

  2. You should see Microsoft Visual Studio 2010 Tools for Office Runtime in the list of installed programs

  3. If not, use this link to install:

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Download requirements

When downloading Great Circle Learning software, select to match your Windows bit-version, 32-bit or 64-bit.

How to check:

  • Open Windows File Explorer

  • Select your C drive

  • You have 64-bit Windows if you see a folder named Program Files and a folder named Program Files (x86)

  • You have 32-bit Windows if you see only one folder named Program Files.

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Install requirements

Great Circle Learning software must be installed locally on each computer.

The person running the install must have:


Full system administrator and software install privilege to the computer


Full Control (Read & Write) to all of the Windows Registry keys contained in HKEY_CURRENT_USER\Software and sub-folders


Read & Write privileges to C:\Users\user.name\App Data and sub-folders (Windows Vista, Windows 7, Windows 8, Windows 10)


Read & Write privileges to C:\Documents and Settings\user name\Application Data and sub-folders (Windows XP)


After completing the install open the host application, either Word or PowerPoint, and accept the prompt to start the free trial. If you do not see a prompt to start the free trial proceed to Activation. (The free trial will only run one time on any machine.)

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Activation requirements

All Great Circle Learning software must be activated locally on each user's machine.


A serial number is required.

Obtain a serial number by purchasing a license. One serial number can be used to activate the quantity of license seats purchased. A license seat is required for each user's machine. Keep a copy of the serial number in a safe place because once activated on a user's machine the serial number is scrambled for security purposes, which means you will not be able to retrieve it from the activated users machine.

An internet connection that allows unrestricted access to Port 443 and access to the following secure URLs is required:


On each user's computer

  1. Use the Act’n DeAct function on the software ribbon

  2. Enter a valid product activation serial number

  3. Receive immediate confirmation of success


Enterprise Serial Number Registration

For LeaderGuide Pro an Enterprise Serial Number registration method is available to simplify the product activation process for those who deploy LeaderGuide Pro via a packaged image method. Please contact us after your purchase to receive your enterprise key.


Reassignment of License Seats

Activation uses a license seat. To reassign, you must first deactivate the license seat on the machine where it is currently in use while the software is still installed.


Deactivation requirements

All Great Circle Learning software must be deactivated locally on each user's machine while the user's profile is still in place.

An internet connection that allows unrestricted access to Port 443 and access to the following secure URLs is required:


On the computer you want to deactivate

  1. Use the Act’n DeAct function on the software ribbon

  2. Receive immediate confirmation of success


Recognizing that there may be times when deactivation is not possible due to circumstances beyond your control, we recommend that you keep an accurate list of users. You will need to contact Great Circle Learning to handle the deactivation for you. Our method will deactivate all seats on the serial number. All users will need to reactivate. To make this easier, you may use our Deactivation Form.


Anti-virus software

Antivirus software can interfere with or prohibit the installation and/or the activation of our software. If possible, please temporarily disable your anti-virus software before installing Great Circle Learning software.

If your computer otherwise meets these System Requirements but you are experiencing difficulty installing or activating, please uninstall using the computer's Control Panel, disable your anti-virus software, re-install the Great Circle Learning software and then re-enable your antivirus software.

Some anti-virus software allows settings that automatically disable add-ins. If such a setting is in place in your organization an exception will need to made to allow Great Circle Learning software to run with Microsoft Office.


User Requirements

All users must have Read Only privileges to HKEY_LOCAL_MACHINE\SOFTWARE and sub-folders.

Read and Write privileges to: 

  • HKEY_CURRENT_USER\Software and sub-folders

  • C:\Users\user.name\App Data and sub-folders (Windows 10, 8, 7 and Vista)

  • C:\Documents and Settings\user.name\Application Data and sub-folders (Windows XP)

  • Microsoft .NET Framework allowed to run with Word, PowerPoint and Excel



Install trouble

If you run the install and do not see the Great Circle Learning software added to the host application (Word or PowerPoint):



Click on File > Options > Add-ins




Check to see if the Great Circle Learning software is listed in Inactive or Disabled Add-ins; if so, enable the add-in.




If the add-in will not stay enabled, verify that the user has the required User Privileges



If you do not see the Great Circle Learning software in the list of Inactive or Disabled Add-ins, go to Control Panel > Programs and verify the following:


Verify that the Great Circle Learning software is in the list of installed programs


If you see (x64) at the end of the Great Circle Learning software name, verify that the user has 64-bit Office


Verify that Microsoft .NET Framework 4.6 or higher and Microsoft Visual Studio 2010 Tools for Office Runtime are installed


Activation & Deactivation

If you cannot successfully complete the online activation or deactivation you will be given a manual activation option. This will occur even if you have an internet connection but are blocked from accessing the required URLs listed below. Since it is much easier to use the online activation, please whitelist the following URLs:


Port 443

Additionally please allow unrestricted access to Port 443. If access to Port 443 is restricted, this will cause activation and deactivation problems. On certain Proxy Servers special rules for authentication may also be required. This is necessary for communication between Digital River servers (our provider) and the Activation/Deactivation program (GCLOnline.exe) which is located in the Great Circle Learning directory of the Program Files folder.


Manual Activation

Performing a manual activation or deactivation is more complex than the online process and requires more steps and time to complete. We encourage you to correct the situation on your system that is preventing online service access. If you must do a manual activation please carefully read the instructions that will be provided and follow each step exactly as directed.



When a manual deactivation is required and you are unwilling or unable to execute it from the licensed computer, please use our Deactivation Form or contact Great Circle Learning with your serial number and proof of purchase. Our method will deactivate all seats on the license key serial number.