Computer won't complete Windows updates - gets right to the end and then says FAILED

[shu-hi]

OS Version: Microsoft Windows 10 Home, 64 bit, Build 14393, Installed 20161001043524.000000-420
Processor: AMD A6-3600 APU with Radeon(tm) HD Graphics, AMD64 Family 18 Model 1 Stepping 0, CPU Count: 4
Total Physical RAM: 6 GB
Graphics Card: AMD Radeon HD 6530D, 512 MB
Hard Drives: C: 686 GB (550 GB Free); 11 GB (1 GB Free);
Motherboard: PEGATRON CORPORATION 2ACF, ver 1.01, s/n [Personal Information Removed]
System: AMI, ver HPQOEM - 1072009, s/n [Personal Information Removed]
Antivirus: Norton 360, Disabled

It came with Windows 7 but someone did update it to Windows 10 - said that on the case.

Pulling my hair our 😠

A neighbor of my daughter give me this computer because she bought a new one cause this one was sooooo slooooow. So I brought it home and opened the case and gave it a real good cleaning, although it wasn't all that bad, anyway. I open the windows Update and it says:  "Updates are available, 2018-04 Cumulative Update for Windows 10 version 1607 for x64-based systems (KB4093120).

So I click "Download and Install"  and about 3 hours later it finishes but says update FAILED.

I get this message:  Feature update to Windows 10 version 1903 - Error 0x80240fff and also, HP-Printer - 2/18/19  Error 0x8024200b (even though I don't have a printer hooked up to it, but the previous owner probably did, but that error doesn't really concern me, it's the Feature Windows 10 update error that is my main concern right now. Ran it 3 more times, same report FAILED.

So the following is what I have already done in an attempt to fix this:

I did and FULL (not a Quick) virus scan and no viruses were found.

I logged in as system administrator and ran: sfc (System File Checker) and it reported "The operation completed successfully) and then I ran dism.exe /online /cleanup-image /Restorehealth and it reported "Windows Resource Protection did not find any integrity violoations. 

I also opened the HP Support Assistant and did a "performance tune-up check" which checked the following:

1. Deleting temporary files

2. Deleting prefetch files

3. Checking System Files

4. Empty Recycle bin

5. Clean Web Browsers

6. Disable search Indexing

7. Enable storage sense

All of the afore mentioned came back saying: All operations completed successfully - No Issues found.

I also opened the Task Manager and opened the Start button and disable virtually everything in there so a bunch of programs aren't open at boot up.  Nothing open or running in the background - only have keyboard and mouse attached.

What can I try

[KingOP]

https://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-10-wont-update-error-cod.... Try the above link. Should fix your problem.

[shu-hi · Accepted solution]

Strange to reply to my own question but it turns out there was nothing wrong with my OS or computer. Turns out that Microsoft was having problems with this Update as many people found that the update failed.  They have since fixed it (as it just worked fine for me now).  Boy I did a lot of work trying to figure out what was wrong with my computer. I tried everything. O'well, I learned at lot.