Windows 11 Cumulative Update not downloading and installing.

LizBOCE, I am sorry you are experiencing problems like I am. After several failed attempts to solving this WINDOWS problem (I say Windows because the problem originated with a Microsoft CUMULATIVE UPDATE download); Microsoft recommended I download a new Windows 11 from their site onto a disc, USB or other drive and do a "mount" install. After 3 attempts to do so, I called Microsoft who then informed me they were having problems with their site and to "try back sometime later". When I asked if they could call me back, text or email me when their site was up, they simply said "we don't do that". Can make a person feel like they don't care that the problem was caused by them and their solution does not work.

Hi SamMaverick.
I'm David, and I'm happy to help you.

Run the Windows Update Troubleshooter.
https://support.microsoft.com/en-us/windows/win...

If it persists, rename the software distribution folders as instructed below:

1. Open Start and type cmd, right-click on "Command Prompt", and select "Run as administrator".
2. Run the following commands at the Command Prompt one at a time:

net stop bits
net stop wuauserv
net stop cryptsvc
ren %systemroot%\softwaredistribution softwaredistribution.bak
ren %systemroot%\system32\catroot2 catroot2.bak
net start bits
net start wuauserv
net start cryptsvc

3. After all these commands are completed, close the Command Prompt window, restart your computer, and then try to update Windows.

If it persists, use the system file checker to repair possible corrupted or missing system files.

1. Open Start and type cmd, right-click on "Command Prompt", and select "Run as administrator".
2. Run the following commands at the Command Prompt one at a time:

dism.exe /online /cleanup-image /scanhealth
dism.exe /online /cleanup-image /restorehealth
dism.exe /online /cleanup-image /startcomponentcleanup
sfc /scannow

3. Then restart your PC and see if you can update.

If it persists, download and install the update that is having problems manually.
https://catalog.s.download.windowsupdate.com/d/...

Source: https://www.catalog.update.microsoft.com/Search...

I hope this helps. Feel free to ask back any questions.

David I did all the steps twice that you recommended but unfortantely they did not solve the problem. However, I really appreciate your willingness to try and help. I hope you have a great week!

I'm having the same problem. Nothing has come close to resolve it and WINDOWS 11 team ... NOT A WORD! WE NEED HELP!!

My laptop has gove VERY SLOW!! and crashing programs. Anyone???

Thanks for the clarification.

My recommendation is the same as Sumit. Do the repair install.

So the April patch failed too. I suggest doing a repair install:

Repair Install Windows 11 using an ISO file - Your Windows Guide

I use Windows Defender as my security software. I did turn it off when I tried your original suggestion.