Why did I get error 0x800403B0?

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 0x800403B0?

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
System Configuration define Address 0x00200020 0x200020 0x800403B1 file Publisher operation 0x800403B3-0x800403B4-nimaxexe">0x800403B2 classrange gfxDrvLayer 0x80004001 classsectionrow Unable Error gfxDrvInstanceSet gfxDrvPageSet bytestd classsize 0x80040fff 0xffffffff 0x80041000 0x800403af 0x800403a7 0x800403a8 0x800403a6 0x800403a4 0x800403a5 0x800403a9 0x800403ad 0x800403ae 0x800403ac 0x800403aa 0x800403ab This 1d8d6ac42d2e37d119021e020d8b260a92426811 IMFSopstd From report 0x800403B3 0x80040158 rodatanullopstd 0x8004035C classsection 0x800401ACtd stylebackgroundcolor009e00 denied connect Permission write folder specified transform generate running Ensure online HWUSB0TEST 0x80040380 0x80040370 0x80040368 HWANACTRL HWUSB1TEST HWUSB1RSTPARA HWDEVICEID 0x800403A0 0x80040390 HWUSB0RSTPARA HWUSBCTRL Microchip 09062015 crash Harmony Graphics 0x800403B4 RTThreadrtthread GitHub master 0x800403B8 rtthreadasm9260th 0x80040400 Search Words nonWeb EROOMEDMCANTMOVETOWPFOLDER Moving List 0x800403a2 0x800403a3 0x800403a1 0x8004039e 0x8004039f information Codes eRoom Appendix HWPCONADDR 0x80040500 EROOMEDMCLIPBOARDOPERATIONNOTSUPPORTED corrupted version EROOMECKRMULTIPLEVERPAGES clipboard supported