What is being described in that post is re-installation, not recovery/restoration. While re-installation may be necessary, nobody has mentioned recovering the OP's files and data.
You will note that I asked about the OP's backups, which likely do not exist. We do not have an answer to that yet. Nobody has indicated to the OP whether or not they can recover their data in the machine's present state. Nobody has said anything to indicate to the OP that re-installation will not restore data, but make it unrecoverable at this point.
Any attempt at data recovery, if it will work, will need to happen before re-installing.
That being the case, any discussion of how to "recover" the Windows installation will necessarily start with a discussion of the feasibility of data recovery.