Delete Old OneDrive Folder

[Cor Dikland]

My existing system was Drive C: as a system drive while Drive E held my OneDrive folder/files

I am installing a new C: drive along with a fresh copy of Win10. When installing OneDrive it wants to create a new folder and I can not make it use the existing folder on Drive E: If I have to create a whole new folder, so be it, but I can not delete the old one which contains 450gb of files (privilege violation).

My questions are:
Is there no way to make OneDrive use the old OneDrive folder before I upgraded to a new drive?
If I am forced to create a whole new folder how do I delete the old one?

Thanks in advance