Lenovo Software Help Center

Launching the Student installer a second time will uninstall.

Problem: Launching the student installer a second time will uninstall the LanSchool Student.


Cause: LanSchool uses the original installation file that was used (e.g - Teacher.msi) to uninstall the product. It behaves like a toggle switch.


Soultion(s): The Student.msi has an option to only upgrade, the teacher will soon have this also. 

The command line parameter to prevent a silent upgrade from accidentally uninstalling the Student, when the same version already exists, is: ONLY_INSTALL_UPGRADE. 

The following is an example of how you might use it : 
msiexec.exe /i student.msi /l*v install.log /qn ADVANCED_OPTIONS=1 CHANNEL=3 ENABLECHANNELSELECT=1 ONLY_INSTALL_UPGRADE=1

    • Related Articles

    • How to create custom student installer pkg for Mac OS

      The LanSchool student dmg allows you to create a custom installer package for mass deployment of the LanSchool student client on Mac OS.  In order to do this, follow these steps: Download and copy the student.dmg file from the Lenovo Software ...
    • Time Sync causing Cluster Issues

      Issue: The customer is having issues with the cluster going out of sync causing various issues. Examples: webRDP giving and Unknown Error Users unable to authenticate UW just running slowly in general Customer will rebuild the cluster, only to have ...
    • TIME_WAITs in Netstat report

      ISSUE When I run a netstat, I see most of the connections to our UW server are in TIME_WAIT status.  How can I get those to close and open ports for connection again? SOLUTION By default the TCP Timed Wait Delay is 240 seconds.  When you find that ...
    • Launching an application from Terminal Server 2008

      When launching an application from Terminal Server 2008 do I need to specify the full path to the .exe on the webapplication object? With 2008 and published apps you can now specify the published application name inside webnetwork. Previously you ...
    • About the Student Computers

      LanSchool is set up to run in the background on student computers. Students will automatically be discovered by the teacher on their channel, provided that the network is functioning properly and the appropriate selections have been made in the ...
    • Popular Articles

    • Can a Teacher see Students outside of school?

      This content has moved! Visit the new LanSchool Classic Help Desk It looks like you may be interested in LanSchool Classic General FAQ.
    • LanSchool Latest Release Notes

      This content has moved! Visit the new LanSchool Classic Help Desk It looks like you may be interested in LanSchool Classic Latest Release Notes.
    • How to uninstall LanSchool Student and WebHelper from Chromebook

      This content has moved! Visit the new LanSchool Classic Help Desk It looks like you may be interested in Mass Deploying LanSchool Student for Chromebook.
    • LanSchool 8.0.2.82 Release Notes

      LanSchool™ Release Notes Updated: December 16, 2019 Component Versions LanSchool 8.0.2.82, December 16, 2019 Chromebook App 8.0.2.13, December 16, 2019 Chrome Web Helper: 8.0.2.5, December 16, 2019iOS TA and Student 8.2.0, December 16, 2019 Android ...
    • Controlling multiple students at once

      Problem: Can I remote control multiple computers at once? Cause: N/A Prerequisite(s): LanSchool Teacher and Student Solution(s): If all of the computers in the lab are the same basic image or configuration (for example. all Windows XP machines with ...
    • Recent Articles

    • Lenovo Software Newsletter

      Question Is there a way I can be notified about product updates? Solution To receive updates from Lenovo Software about product updates, we encourage customers to subscribe to our Lenovo Software Newsletter.
    • Allow Help Desk to reset Image Challenge images

      Issue Customer would like to allow Help Desk users to only be able to reset user Image Challenge images when they have been forgotten by a user. Solution This can be done by assigning specific users in the system the User Group Admin role, as well as ...
    • Troubleshoot RDS

      This is a good article, from Microsoft, on how to troubleshoot RDS/RDP logon issues. https://social.technet.microsoft.com/wiki/contents/articles/37841.remote-desktop-services-rds-logon-connectivity-overview-and-troubleshooting.aspx
    • Building an Employee Phonebook system

      Building a Mini Application Post #20 Can it really be that simple to create a little application with Report and Form Builder?  This tutorial shows you that it is - and actually helps you make a useful application at the same time as learning how to ...
    • Working with Binary Data in Report Services

      Quick Start Guide - Binary Data This tutorial is designed as a quick "How Do I Work With Binary Data" tutorial.  It walks through the steps necessary to upload an image to a database.  Every webNetwork 6.0 installation ships with a database called ...