KB4550945 CU Win 10 v1903 build 18362.815 and v1909 build 18363.815 Win Update

Bree said:

Bree said:

The main culprit seems to be SysMain (the process formerly known as SuperFetch). This can take up to 10 minutes to settle down, but once it has your system should (in theory) be faster. It's a moot point whether it's of any benefit with an SSD, but seems effective for HDDs.

Enable or Disable SuperFetch in Windows

I rarely start up Windows, preferring to Sleep or Hibernate my laptops. My 'daily use' machine is System One below, even with its old HDD it resumes to the desktop in a couple of seconds. It's been more that two weeks since it was last started up after last Patch Tuesday's CU.

Attachment 276943

Thanks Bree I will investigate this 'Superfetch' as I only have HDD's. And,

I'm the same way I rarely start or restart and definitely no hibernation, no fast start, the only time I start or restart is when 10 tells me it needs it. It sure ain't like the old days.

Berton said:

I've noticed several times that an update may not be finished but there is the Upgrade and Shutdown or Upgrade and Restart choices which has meant there was a previous process that needs completion by the restart and the update in process at the time usually continues where it left off.

Another good point.

For some reason this update caused some pretty nasty performance degradation on my laptop that was system wide. Having it uninstalled and my laptop is extremely responsive and everything is buttery smooth again.

Finally can update after two months always Error 0x800f081f
After update to build 18363.815, so far so good with my desktop.

@storageman
The missing "Safely Remove Hardware" warning may be by design:
Windows 10 now lets you pull out USB drives without 'safely removing' them

It's working as it should. But had issues installing the Defender signature as new defender update occurred right before it.