You can give a user permissions for remote access via RDP (remote desktop protocol) without making them an administrator.
RDP is built into Windows, but there are other RDP clients you can download.
What OS and version are you using?
Hope this helps!
1) The “other” system will need to have Remote Desktop enabled. (RDP is disabled by default)
2) Add the user to the “other” system’s Remote Desktop Group
3) From the user’s pc, go to Start, Run, type: mstsc (Remote Desktop Protocol window will appear)
4) Type the other system’s computer name and connect.