You can view the events of a remote login in Windows using the ‘Event Viewer’ which would let you configure logging for a multitude of events of your system. Checking the logs would let you see details of when an activity was performed, the scope of the activity and who performed it.
Note that if you’re talking about a corporate system the organisation’s policies may require that regular users have limited privileges on their systems, which means you may not be able to access the Event Viewer with your account, so that might be a luxury you could enjoy only on your own personal system.
Note that a corporate system administrator should not be doing anything that goes against company policies either, so there’s no need to monitor anything. Also, a company policy might allow them ownership of any data on their own systems or network — including your personal data. They are also allowed to monitor all activity on their own systems / network, so keep that in mind when you work on them.