It won't sync files to your OneDrive folder in Windows 10.

The OneDrive app will now be unlinked from this PC.Go to the Account tab and click on Unlink This PC as shown below.Right click the OneDrive icon in the system tray to open its settings.To Sign Out of OneDrive in Windows 10, do the following,

Also, you can uninstall it completely in that case as described in the article ' An Official Way to Uninstall OneDrive in Windows 10'. For those who prefer storing files on their local PC, there are options to not use OneDrive as the default save location. It can be used as your online backup solution. Once you are signed in to Windows 10 using your Microsoft Account, it starts prompting you to use OneDrive cloud storage as the place to save files and documents by default. In Windows 10, OneDrive has very close integration with the OS. Besides OneDrive, Microsoft Account can be used to log in to Windows 10, Office 365 and most online Microsoft services. To use OneDrive, you have to create one first. The synchronization feature in OneDrive relies on Microsoft Account.

Sign in onedrive