Windows Booting very slow after 2004 update ,

FYI: there is also a report that newer updates (such as the September ones KB4571756 and KB4574727) are ALSO causing performance issues, PLUS some unwanted problems, with the Start menu broken, or the "missing user profile" bug rearing its ugly head again.

The original profile is STILL there, and data is NOT LOST. The workaround for that is:

"If you encounter temporary user profile bug, Microsoft’s workaround is to boot into the Safe Mode once and everything should return to normal when you get out of the Safe Mode environment."

Other issues are:

"Like every month’s Patch Tuesday release, it seems that not being able to install the Windows 10 KB4571756 is the problem most are encountering, with 0x8007371c, 0x800f0984 and 0x800f081f being the most-reported error code."

Here is the link to the full article for those interested:

https://www.windowslatest.com/2020/09/15/windows-10-september-2020-update-issues/

FYI: sorry about the typo a the end of my previous post about the other forum, and the EDGE KB update, I had a typo in the KB number.

Here it is again, correct this time:

By the way, some users are finding that the install of the new Chrome Based Edge browser is affecting performance as well, especially if done via updateKB4559309 (see the other forum on that subject).

So, I decided to restart in safe mode and see if it made any difference. Boot time was still the same ,but running sfc /scannow in safe mode did find and fix corrupt files. Was hoping this helped ,but it didn't.

@MarylinAtchley1 - you do not need to be a programmer to do this - the experienced poster happens to be one.

The tool to do this (Services.msc) is in windows in part of the Control Panel or Settings part. You can go directly to the services control tool that does this by right-click on the start-menu icon (bottom left), choose Run, then key in "services.msc" without the quotes, click OK.

When it starts, you will see a new windows start up, listing all of the services. Scroll down to "sysmain", right click and choose stop. Then right click it again and choose "Properties", then choose disable.

In that same window, scroll down and find Windows Search, right click on that line and choose Stop. Wait for it to stop, then right click on it again, choose properties, choose disable. Close the window.

Reboot and check things again.

By the way, some users are finding that the install of the new Chrome Based Edge browser is affecting performance as well, especially if done via update KB4559309 (see the other forum on that subject).

Windows isn't becoming slower. That's a misconception !

I'm a programmer and I had (and still have) Windows 10 from it's first release. I've gone through all the updates and versions and the system kept it's parameters without exceptions.

Now I've installed v 2004, It's a fresh install because lately I've done some experiments with my PC and .... you get the picture.

The system has the same speed, with a slightly noticeable "pause" when you start a program or app than the 1909.

If you're still running on HDD, please change it immediately with an SSD.

Two things I've always done, right after a fresh install or major update of Windows:

1. Stopped and disabled SysMain service, or SuperFetch how it was called in early versions.
2. Stopped and disabled indexing service.

As a professional, I've never understood the role of SuperFetch (SysMain), other than keeping my drive bussy all the time. And the indexing service is just lame. I mean, if I don't know to organize and label my stuff it's my problem. That's my point of view, anyway.

Right after stopping SysMain, you drive will breath again. Trust me on this one.

LucianMinea

I hope you can give me a pathway to follow.  I am not a programmer and do not know how to accomplish your suggestion.  Thank you.