Why did I get error 0x8004049B?

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 0x8004049B?

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
Configuration System 0x8004049D sslread 0x80004001 data Invalid 0x8004049E 0x8004049C target does This operation specified data0x800d2218 fd13 jabberreadcallback len512 sslopensslc208 condBEVIOREAD source0x800d5e00 conditionGIOIN gaimioinvoke ioc169 0x80027087 0111100 2020b03cf3d99541f29ffec281bebbd4ea211292ac1f53d7128 000000000000 0x8004049A 000316053134377c30 02write 0X8004015 0X8004047 0X8004014 exception b04928D8850673088B343264E0C6BACB8496D697799F37211DEB25BB73906CB089FEA9639B4E0260498B51A992D50813DA8 file transfer installations support custom error 0x80040499">0x80040498 0x80040499 timed WebDAV occurred buf0xbffff1d4 EZNCDATAMDLREGISTREAD readable Readonly type EZNCDATAMDLREGISTREADONLY MErrorEnum Class Interface C12Adapter Opensource FCSB1224W000 EZNCDATAMDLREGISTSUBSECT Software MITSUBISHI Communication EZNCDATAMDLREGISTDATATYPE 0x80040497 number 0x80040492 subsection Reference google talk hangs 1046 bitlbee 0x80030b70 conn0x800cecc8 usrliblibsslso100 accounts 16032015 C12ServiceResponseNETR C12ServiceResponseRQTL C12ServiceResponseNETT C12ServiceResponseSME C12ServiceResponseUAT C12ServiceResponseSGNP 0x800404A1 0x800404A0 0x8004049F C12ServiceResponseRSTL