how to fix Feature update to Windows 10, version 2004 failed - 0xc19001e1

So it made no difference. In fact version 2004 doesn't even show up under Windows Update anymore. I'm still at the 1909 build.

I did what you said, and it worked well.  Thank you.

My computer which is more than 7 years old and came with windows 7 was upgraded to windows 8 then two years later (2018) crashed luckily I was able to have my info on my hard drive recovered and a fresh install of windows 10 and I installed all my apps / programs and for awhile with other updates since 2018 seemed to be working ok.  The latest windows 10 2004 update caused lots of problems never installed frozen halfway etc (see my first post).

I had to pay to get online support to get the Windows 2004 update done which finally installed.  Once it was done it seemed as though my computer was stuck in a loop not responding at start up with any of my apps and or programs such as Microsoft office 365 so once again I had to contact the support people which I had paid (for a year subscription) to dial in and they did exactly what LeeRobins suggested on the thread above. they also changed my startup so that not all my programs and apps ran at startup to help solve the time it took for my startup.  It did take care of some of the issues I was having after this was done but it looks like I am going to have to call support once again as I am still experiencing startup issues and have to reboot my computer to get things working correctly. 

I do not believe I have have any hardware problems but it has been suggested that maybe I will need to do a fresh install of Windows 10 to wipe the hard drive and start all over but before I do that I will look into buying a newer model as some of my drivers for my hardware are not able to be updated since my system is so old and the driver hardware is outdated and not supported anymore. 

Not sure if any of this will help anyone else but good luck with updating Windows 10 2004.

Here are my device specifications:  Intel (r) Core(TM) i7-3770 @ 3.40GHz 3.40 GHz  Installed Ram 12. GB System Type 64-bit operating system, x 64-based processor.  Windows 10 Pro version 2004 OS build 19041.329

Lynnetted

I'm sorry, but this answer was for a different problem.

The issue is simply this: There is not enough room on the C drive.

The update needs space to download, then space to unpack so that it can install. If the download is say, 10Gig, then the unpacked size is probably 15-20Gig (just using numbers, not the actual size necessarily), so the needed space is 25-30Gb.

This is why MS introduced some application with install as it downloads option, to reduce this huge overhead.

The suggestion to use DiskCleanup is simply to get rid of old temp files and installers for already installed apps, to free up more space.

Check your C drive and make sure you have plenty of space on it.

As I rule of thumb I have Windows and Windows essentials on my C drive, only, and all my apps are on separate a drive.

Hope this helps.