Update Failed - Error Code C1900204 *FIXED

EDIT: THIS IS NOW SOLVED, CHECK MY POST BELOW FOR THE CAUSE AND SOLUTION

So the time is currently 3 AM and I've tried installing Windows 10 for the 4th time. It all started when my friend sent me a text message that he Windows 10 was setting up for him. I immediately sought out to see why I was never prompted to install it (we live in the same State/Time Zone). It said I was eligible for the upgrade and that it was reserved, but still nothing about it being ready to be downloaded.

I restarted my PC and long-behold, it was downloading! It was fairly quick and took about 15 minutes. After it was complete, it suddenly said that the update failed and gave me an error code of C1900204. I was upset by this and started searching around, and no luck what-so-ever. I went ahead and tried to re-install it, and it downloaded fine, but once again came up with that error. I restarted my PC and tried again, nothing.

I began to think that maybe one of my system files was corrupt and so I went ahead and started to scan the system files via CMD sfc /scannow. After it ran through, luckily with no errors found, I tried to install it once more. Once again, it failed with the same error!

I have no idea why this is occurring. Also, here is a picture of my System. I blurred out the Computer name and product ID due to safety concerns.

 

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Last updated May 9, 2019 Views 24,481 Applies to:

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Hi,

Thank you for showing interest in installing Windows 10

As you are facing issues updating through the Windows Update, and as of now we suggest you to try the work around and try to upgrade using an ISO from this link.

http://www.microsoft.com/en-us/software-download/windows10

Hope this helps.

Ravinath P
Forum Moderator - Multiple Forums

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FIXED

The CAUSE: Changing your default install location in registery.

The FIX: CHANGE THE LOCATIONS BACK TO THE ORIGINAL (If you forgot which drive, it is the one with your OS)

Have fun installing Windows 10!

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Can you tell me where exactly the default install location would be?

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To change the registry, follow these steps:

1.    Start Registry Editor by entering “Regedit” in the search All programs.

2.    Locate the following:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion

3.    Right click on the value named ProgramFilesDir & change the default value C:\Program Files to the path you want to install all your programs in.

4.    Click OK and Exit.

Mine were all pointing to D:\ .... I change this back to C:\ and the install looks to be working now.

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I'm trying to run the Media Creation Tool and getting the "something happened" message.  I've tried running as administrator, double checked the English US language/region setting and even used Regedit to create an AllowOSUpgrade = 1 value, based on one suggestion, and still no luck.

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I am having the same issue

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Do not do a fresh install of Windows 10 before upgrading via the update process as you will not be able to activate Windows 10, CallMeInfinity's suggestion fixed it for me. 

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Thank you very much!

It's been a week waiting for a solution.

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I've been trying to update to Windows 10 since I started getting the ready to install popup on the 29th of July. At least 2 dozen attempts later I'm still sitting here going nowhere.

  This is a  new Asus laptop (a month old) running Windows 8.1 64 bit, with SSD and HDD.  The OS is on the SSD.  I've done as instructed in the above FIX.  I've also deleted ALL of my AV and anti malware programs.    I've returned the program file paths back to the C Drive (SSD) . 

I ran the updater again...and again. 

I keep getting this:

I've checked my SSD to see if there is enough space.   It looks fine to me.  It only holds the OS and  Arma 3.

I've tried to do it via the upload tool.  (saved to a USB drive).  When I get to the "Choose what to keep", it won't allow me to choose Keep personal files and apps.  I only have the NOTHING setting.   I DO NOT want to clean install. 

It says, "You can't keep Windows settings, personal files, and apps because your current version of Windosw might be installed in an unsupported directory."   What does that mean??? 

At this point I'm ready to give up on Windows 10.  If there isn't a solution...at least post how I can stop the pop ups and auto update attempts. 

This thing is going to cost me a fortune in download fees. 

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Does anyone have a fix for this?

I have exactly the same problem and callmeinfinity's solution does not work

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