Why did I get error 0x80042807?

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 0x80042807?

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
define VDSEBOOTDISK Disk more volumes changed boot mounted cannot vdserrh attributes VDSSDISKDISMOUNTFAILED 0x00042809 already 0x00042808 type VDSSDISKMOUNTFAILED Reference Messagesh 0x80042806 File UInt32 readonly attribute clear Mobile MicroStrategy could possibly Error data VLDBEUNKNOWNDATATYPESEN because MSVDS VLDBEUNKNOWNDATATYPE VLDBECATALOGUNSUPPORTSEN Catalog conversion supported 10392 Software Sleuthing database 10390 10391 10389 column SQLESQLNOTAVAILABLE appropriate VLDBENOASSOCSEN find 0x80042808">0x80042809 10388 VLDBECATALOGUNSUPPORT 0x80042808 References Source QUERYDESCRIPTIONOUTOFSYNC HRESULT0x80042807 description Query SystemUInt32 2147211257 29112017 HRESULT0x80042807L sync missing mapping QUERYDESCRIPTIONINVALIDGEOMETRYTYPE HRESULT0x80042808">0x80042809 QUERYDESCRIPTIONOIDFIELDSMISSING HRESULT0x80042808 used Fields 2147756039 10248 10247 mount Failed User HRESULTS 27092011 0x004 10249 ProgramFilesx86Windows HRESULT0x80042806L 7678102 Kits10Include100162990umvdserrh27190 Magical MagNumDB VDSESETSANPOLICY Number 0x80042706 0x80042707 0x80042708 0x80042705 win32 ErrorCode 0x80042703 0x8004270D 0x8004270E 0x8004270F 0x8004270C 0x80042709 0x8004270A 0x8004270B methods symbol means COMOLE HRESULTinfo Codes MSDN Microsoft userdefined returned from designated Interface management FACILITYITF rather everywhere CallDiskPart ONLINE Sevecek MyCommandName Bring DISKPART Unknown VLDBENOASSOC RunProcess diskPartScr diskpartonlinedisk0D2 oneHDDIndex Ondrej 0x80042803 0x80042804 0x80042805 0x80042713 0x80042710 0x80042711 0x80042712 Service Protocol buildup2 Virtual 0x8004280A 0x8004280B 0x8004280C