Chrome User Data Security Password etc. within Windows Accounts

Hi all,

Sorry for my bad Language, because english is Not my first. I did not find anything regarding my question, so i just ask here.

If i wanted to use Google Chrome on a work computer used by other collegues, do they have Access to my User Data (Google Account with password and Link Synchronisation) if some collegues have admin rights within windows? I think Even if i store Chrome Portable in the User Folder, the Admin will have Access to it and all Stored Informationen.

Maybe it is better to install chrome to the System to prevent sich Things?

Thanks
Jenar