This can happen for two reasons:
This is usually caused by moving the installation directory without first uninstalling the application.
To Fix:
1) Run “UnInstallClient.exe” from the installed directory
2) Reboot PC
3) Run “ClientInstall.exe” from the installed directory
The install needs to access the network directory while elevated as Administrator.
Answer 1 - Enable "Linked Connections" Group Policy on Server (Recommended)
This can be done in a number of ways on the server. Please see:
Enable Linked Connections
Mapped drives are not available from an elevated prompt when UAC is configured to "Prompt for credentials" in Windows
Now reboot client PC's for change to take affect.
Need to, find folder "installed directory" in explorer. The directory is shown in the error message. Either a network PATH or C:\Program Files(x86).
Right click on folder in Windows Explorer and select properties.
Select "Security tab"
Press [Edit] button
Press [Add]
Enter "Everyone"
Press [OK]
Select "Everyone" on list.
Tick "Full Control"
Press [Apply]
DONE