Why did I get error 0x800400E0?

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 0x800400E0?

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
public const GitHub master 0x820c0480 regutilregutilwintergrasph SoCs Utility sutajiokousagiregutil account creating registers Update Windows Solution error manipulating with solved 0x10002 0x1000000 rockboxzenxfi212301ehwinitregdumptxt 0x80000001 0x101 0x800400a0 0x800400f0 regutil Contribute development 0x92929252 0x80040110 0x80040020 0x17b EDETACHNOPROXY EDETACHTSUNSUPPORTED EDETACHIMPERSONATEFAILURE Firmware SetColor0x800400dc2mycolor SetColor0x800400e01mycolor SetColor0x800400e02mycolor ISP2500 0x0500100a 0x61680800 0x00000204 0x60a80801 MIEngineAD7Hresultcs SetColor0x0000c5de1mycolor SetColor0x800400962mycolor mycolor0x8080FF static main SetColor0x800400d82mycolor SetColor0x800400dc1mycolor SetColor0x800400d81mycolor SetColor0x800400d61mycolor SetColor0x800400d62mycolor 0x00000404 Magical Number MagNumDB 0x48006000 0x58300000 Database ETARGETFILEMISMATCH 0x80040101 0x80040100 0x800400D0 ECANNOTSETNEXTSTATEMENTONNONLEAFFRAME 0x84000574 0x05001002 0x60b40800 0x00000804 0x05001006 0x60b80800 0x4c300000 0xfc00ffff 0x80080540 0x82081500 0x600060de 0x58301000 0x8000A162 14102014 EDETACHTSUNSUPPORTEDuncheckedint0x800400E0 MSDN Sample Code EDETACHIMPERSONATEFAILUREuncheckedint0x800400F0 selection controls sources ECANNOTSETNEXTSTATEMENTONNONLEAFFRAMEuncheckedint0x80040100 refxtal HWCLKCTRLCLKSEQSET 0x800400E4 HWCLKCTRLCLKSEQ various dividers HWCLKCTRLCLKSEQCLR Debug Engine Studio AD7Hresultcs Visual Product STMP37xx Data Rockbox Sheet uncheckedint0x800400F0 ESESSIONTERMINATEFAILED MicrosoftMIEngine uncheckedint0x800400C3 uncheckedint0x800400E0 uncheckedint0x800400D0 Register Control Description 0x8000A168 This Sequence 537xxDS1103031408 14032008 4815 Frequency Clock