Hello,
Thank you for coming to the forum, my name is Fuad. I will be happy to assist you in the best way i can.
You will need to go to manage backup and remove the desktop from there or others that you do not need.
To do that: Click the onedrive icon on the taskbar > click settings (gear icon) click Manage Backup in the sync and backup tab and remove the folders you do not want to back up or sync to OneDrive.
When you do this, the contents on the desktop will vanish, not to worry they will be in the below location. Just copy them back.
Go to your C drive, then open (double-click) the folder called Users > then open the folder with your Username. In that folder you should see another folder called OneDrive. Open that folder and all your files should be there. Move all your files by opening the folders and copy/cut/move them from that folder to their corresponding folders.
Then, since OneDrive does not have enough space for what you have on your device, I will advise you unlink it. Do not delete anything in the cloud without doing the below first.
- Removing the folders you do not want to sync from the manage backup
- Unlinking first, delete from cloud then link back.
Unlink OneDrive
Click the OneDrive Icon on taskbar > Click settings (gear icon) > go to the account tab > click unlink this PC
Click the link below: https://support.office.com/article/3c4680bf-cc36-4204-9ca5-e7b24cdd23ea
I kindly await your reply for a follow-up
Best Regards
Fuad