If you have tried to manually open Activmgr from the file locations which Jarrad has mentioned then we would recommend un-installing the ActivDriver application from the computer and re-downloading and re-installing.
You can download the latest ActivDriver from article 10902 on http://www.PrometheanKB.com.
If you have any issues please do not hesitate to get in touch.
- Release notes for ActivInspire v2.21 (released 5 January 2021)
- Release notes for ActivPanel Elements Series v4.3.0 (released 16 December 2020) and v4.3.1 (released 7 January 2021)
- Release notes for myPromethean portal v1.4 (released 2 December 2020)
- Release notes for ActivConnect OPS-G v2.4.4 (released 16 October 2020)
- Release Notes for ActivPanel Elements Series v4.2.0 (released 30 September 2020)