Why did I get error 0x80004400?

Windows Update continous fails to search for Updates or cannot install them. The source of this problem could be various things as
> Windows Registry
> Windows Filesystem
> Internet access

> Windows Update service
> File corruption
> Misconfiguration
> Adware
> Virus and Malware

How to fix Windows Update error 0x80004400?

However, if you’re technically savvy, you can try the steps below:

1. Click Start and start typing on your keyboard for "services.msc"

2. In your search results "services.msc" should show up. Open it with a click.
3. A new windows will open containing all Windows services on your system.

4. Search for "Windows Update"
5. Right-click the "Windows Update" and then click Stop.

We will now clean the Windows Update temporary cache folder:
1. Hold your windows-key pressed and hit "R" key simultanous.
2. A small new windows will appear.
3. Type %windir%\SoftwareDistribution\DataStore in this new window and click OK.
4. This will open Windows Explorer on the correct location.
5. Delete all contents of this folder. (Hint: Use Ctrl + A to select all files and folders)

Now we will start the Windows Update Service again:
1. Switch back to the windows Services.
2. Locate Windows Update.
3. Right-click on it and choose Start.


If the problem still persists, you can run the System File Checker (SFC) utility. This handy in-built tool will check your filesystem.
1. Click Start and start typing on your keyboard for "cmd".
2. In your search results cmd should show up with an black icon.
3. Right-click it and select Run as administrator.
4. If you are prompted for the admin password, enter the password and click OK.
5. A new completely black windwos will open. You can type commands directly into this window.
6. Type sfc/scannow and press Enter.
7. This process will take a long time. You can minimize this black windows and work on.
Come back to the black window after a time and check if the process finished.
As soon as the SFC process finished, restart your computer. After the restart you search for Updates again.


You are still facing the same issue?

1. Restart your computer.

Next thing is to clean Windows Update download path. These steps are only for expirienced user! If you mess up your computer with Regedit, you could loose your files! Take care or use a professional tool to investiagte your computer.
1. Hold your windows-key pressed and hit "R" key simultanous.
2. A small new windows will appear.
3. Type regedit in this new windows and hit Enter.
4. In the new windows you have a navigation on the left side. Use it to navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
5. Once you found it, search for WUServer and WIStatusServer in the right hand pane.
6. If they are not listet we cannot clean the download path. Othwerwise delete both.
7. Restart your computer.

Try to search for new Updates again.
You are still facing this issue? I think this is not an usual problem and your computer should be checked by professional.
Try to look for a solution here or search further in the search box below.



Advanced information

The following Windows verisons are affected by this error:
> Windows Vista
> Windows 7
> Windows 8
> Windows 8.1
> Windows 10
> Windows 10 Redstone 2
> Windows 10 Creators Update
> Windows Server 2008 R2
> Windows Server 2012
> Windows Server 2016
reserved define TFTPD error System SATA 0x400 ata1 0x800047ff pair port 0x80004400CRC32 waiting Windows Boot signature crcillegal Y30S93ATLCDHOME install Apple Support 24102009 firmwarebad Camp Official starting till other memory ranges customized FREEMEMLO using Instead files 0x80fd1400 transfer kernelroot Every 0x800043ff 0x80000000 0x80003fff 0x80004000 Graphics Nvidia 03042006 initialized 1921681202552552550 0x800044000 21042014 0x4000 loco5 Unimos saying didnt some gives time wireless keyboard View topic Uneven Forums code more Gentoo invalid 0x80004500 4196037 link m10240x80004400 3714391 UDMA133 abar 0x80005200 0x80008fff 0x8000c000 GitHub Gbps SStatus wk2325272MQX381 einrichten resources Server sont 0x80004307 Liste derreurs 29022016 validable hngt Festplattenzugriffen BizMessage momentanment disponibles FRTransferServer 0x8000ffff AngryRedPlanet perfErrorClass pinsErrorClass Reference OpenBinder CmnErrorsh File 0x80004F00 nanostation5 tftp pppErrorClass 0x80005000 postalErrorClass 0x80006000 MUIMTransferWindowCreateTransferControlGroup compile nightly builds Cant 0x80010200 0x80010fff area 26072015 TransferWindowObject YAMNewObjectMUICTransferWindow Discussion under Message List