Did you bother to read the replies you got on your first post
about this subject?

--
Jason jason_warren ieee.DELETE.org wrote:

Path: eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Jason jason_warren ieee.DELETE.org
Newsgroups: alt.comp.os.windows-10
Subject: Cannot delete partition
Date: Fri, 17 Mar 2017 17:27:04 -0400
Organization: A noiseless patient Spider
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I cloned the SSD C: drive in my laptop with the Acronis tool to move C:
to a larger SSD. After a glitch or two it worked. Now I want to
repurpose the drive I removed. I was able, through Disk Management, to
delete the old C: partition, but there is a small (40MB (remember when
that was large!?)) "OEM Partition" that Disk Management won't touch. How
can I get rid of it?