Why did I get error 0x80042526?

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 0x80042526?

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
VDSEINVALIDDISKCOUNT number specified VDSEINVALIDEXTENTCOUNT 0x80042528-VDSESOURCEISTARGETPACK">0x80042527 operation 0x80042528 invalid vdserrh MSVDS volume types stripe disks zero packs MUST 0x80042525 size 7678102 bytes Protocol other valid Virtual Disk Service VDSESOURCEISTARGETPACK source target extents least Database UInt32 0x80042532 0x80042533 0x80042531 0x8004252F 0x80042530 0x80042534 MagNumDB Magical distinct Intellectual Property 2147755302 0x004 User HRESULTS 27092011 9510 volumes between Sleuthing define SystemUInt32 2147211994 HRESULT0x80042526L Software Kits10Include100162990umvdserrh14140 ProgramFilesx86Windows 0x8004252E monotonically increase start VDSEINVALIDSTRIPESIZE RAID5 striped power indexes Codes Error 14072016 MSDN member VDSEINVALIDMEMBERORDER Microsoft 0x80042524 0x80042523 0x80042522 0x80042529 0x8004252D 0x8004252C 0x8004252A 0x80042521 0x8004251C ErrorCode win32 0x8004251D 0x80042520 0x8004251F 0x8004251E