KB4023057 = remsh = Remediation Shell msi package remedy "fix" update related components to allow the upgrade i.e. registry settings, services status, USO and WU SIH schedule tasks, disk space, launch Windows10UpgraderApp.exe if installed (included with 14393 CU)
Thank you abbodi1406 for clearing this up! Of course, I thought it was something suspicious and nefarious that MS was doing. But I was wrong.. Sorry to all for my incorrect assumption and thanks to abbodi1406 for clearing things up quickly.
I also noted that in 1 hour of using 16299.15 but surely 1 hr is not enough to know for sure. How long have you tested. Missing icons is a pain and a loss of time. When the welcome screen shows longer than usual, I know that icons will be missing. I use 1607 only because the overall whiteness of background is much better than in 1703 or 1511. RTM had a good white background and so has 1607. 1703 is a bit towards warm white. 1709 has introduced one small issue: desktop icons are wider horizontally. So if you have 100s of folders in documents, it can add up to 1 more column.
Windows Malicious Software Removal Tool for Windows Insider Preview and Server Technical Preview x64 - October 2017 (KB890830) (1709)
thanks alot..! yeah the last 2-3 months the wu is really slow and speed unstable..happend when you download even direct links the cu