Hello
It sounds like your colleague is experiencing an issue where OneDrive is showing as full even though only 150GB is being used. This could be due to several reasons:
Storage Quota: OneDrive for Business typically comes with a storage quota. If your colleague's quota is less than 150GB, then it would show as full. You can check the storage quota in the OneDrive settings.
File Versions and Recycle Bin: OneDrive keeps versions of files and items in the Recycle Bin, which can take up space. Make sure to empty the Recycle Bin and check for any old versions of files that can be deleted.
Sync Issues: Sometimes, sync issues can cause OneDrive to misreport the amount of used space. Ensure that OneDrive is syncing properly and that there are no errors.
Large Files: There might be large files that are not immediately visible or are in shared folders. Check for any large files or folders that might be taking up space.
Configuration Issues: If OneDrive is configured on different drives (e.g., D drive for OneDrive and C drive for Documents), it might cause errors. Ensure that OneDrive and the folders it backs up are on the same drive.
I hope this helps!