If you have access to a shared drive, like OneDrive or one shared by your organization, you can install a fresh installation of KeyShot there.
Once installed and you have comfirmed everything works, copy the model sets from your local drive and add them to the new shared Resources folder. This way you will always have access to the model sets and materials you want.
Please keep in mind that KeyShot does run into Security and Permissions issues when hosted on OneDrive due to your organization's security settings and those applied by OneDrive.
But if done right this solution could work for you.
Best Regards,
Erik Williams
Luxion Customer Support