Download the UUP files from @mkuba50's UUP Dump (link is at the OP) and convert them to ISO and clean install as you always do. PS, we are now at 16288.1 for rs3_release and on 16362 on skip ahead rs_prerelease.
hello do you think I can slip now from "fast" to "slow" in order to quit "insider preview" whenwe have RTM ?