Does the user account on the computer you are using have full admin rights? As it sounds like that it is a security setting somewhere along the line that is causing the issue.
Also does the file download correctly? When installing have you tried right clicking the installer and selecting “Run as Administrator”?
If you are still having trouble you can contact our support team quoting reference number 00491649.
You can get get the telephone number from here:
Promethean Technical Support
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