This did not work for me. Yesterday I noticed my PC again had v-2004 listed in updates. I had indeed done a similar process to this one, but I paused the update and successfully performed the one described here.
I scheduled the restart for 3am. This morning I woke up to "Feature update to Windows 10, version 2004 Failed to install on 7/28/2020 - 0xc1900101"
All that this procedure accomplished was to DELETE all previous entries from my Update History! This is now the only update listed. :-(