New 1809 update now shows this in Event Viewer

FWIW ... Everyone may not have the B31118B2-1F49-48E5-B6F5-BC21CAEC56FB key in all the places listed in Zardoc's post (I didn't), so I recommend you do the fix manually. If you're not comfortable doing the following, then don't and wait for MS to fix it.

1. Use ExecTi to open Regedit and navigate to the following two keys ...
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileNotification
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\ProfileNotification
2. Under ProfileNotification check if you have the TDL key
3. Delete the TDL key at each location
4. Check the locations in Zardoc's post and delete the B31118B2-1F49-48E5-B6F5-BC21CAEC56FB key
5. Reboot PC to verify

Note:
1. I would export the keys ... before you delete them ... just to be on the safe side.
2. ExecTI

I have them in the same place as Zardoc. The question is, why are they there, or why have they become redundant?

The Tile Data Model Service was removed in 1809 and for whatever reason those entries didn't get cleaned up.

Same errors, is it safe to delete the registry ?

The error happens every time you open Task Manager, so you don't need to restart or log off to see the error... Every time Task Manager is opened ........