Situation: The client has a problem to install Windows Update KB5015811 with Updates failed and retry. .
Troubleshooting: If this is a new Windows Update, you could wait for a while.
“Windows Updates usually eventually sorts them out, but it has to scan 1.5 billion PC’s every few days so it can get behind and may take awhile to sort them out as to priority, or process the telemetrics to adjust the update to avoid failure.. So you can ignore it and not micro-manage updates if they are not bothering you”
Or refer to this post:
