Why did I get error 0x80043018?

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 0x80043018?

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
Idle 0x8004301B">0x80043019 file domain HRESULT const TMSSRVEINVALIDCHANPROPERTY TMSSRVEINVALIDCHANOP 0x80043017 with existing incompatible 0x8004301B HRESULT0x80043018 1050 DOMAININCOMPATIBLEWITHDEFAULTVALUE Cannot default from data jobs Full 0x8004301C Guide Developers TMSSRVEFILEOPENFAILED TMSSRVETOOCLOSETORECORD TMSSRVECHANOFFLINE AppServer codes 1051 project specified executing TMSSRVEFILECREATEFAILED manualzzcom TMSSRVEVIDEOFORMAT 0x80043014 14082014 0x80043013 TMSSRVEVIDEOCOMPRESSION 0x80043015-define">0x80043016 TMSSRVEBADFILERANGE 0x80043015 TMSSRVERTSSHMEM Page 29112017 HRESULT0x80043017 HRESULT0x8004301A downloads TRAFFICDOWNLOADTIMEOUT same name different DOMAINDOESNOTMATCHWORKSPACE definition HRESULT0x8004301B">0x80043019 process value ArcEngine CSDN traffic update waiting timed while cancels currently scheduled Execution time submitted ACTION newly queued rejects Request MSIRequestCacheRequest Error KB20426 K2ErrorCodesh 0x8004301a mean state 2147209192 cache 16062017 write destination cerWriteFile read source exist cerPathNotFound does cerFileNotFound filename cerReadFile Xceed Streaming About There options offset beyond cerInvalidFileOffset Compression control