A Microsoft file hosting and synchronization service.
Hi there Chris W,
Welcome to Microsoft Community
I'm Bobadoye and I'd be happy to help you out with your question.
You can keep some of your files in the Cloud only, to achieve that: Right-click on the OneDrive icon in your notification area>Settings>Account>Choose Folders> Unselect the folders you want in the cloud and not on your PC, the file will be hidden from your File Explorer and will be available in the Cloud.
I hope this information helps. If you have any questions, please let me know and I'll be glad to assist you further.
If the reply was helpful, please don’t forget to upvote or accept as an answer, thank you.
Best Regards,
Bobadoye