Why did I get error 0x80043509?

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 0x80043509?

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
MicroStrategy define Error REXSPHEDUPLICATEPROPERTY Intelligence WindowsSearchErrorsh 0x80043507 public activity Invalid Server HRESULTinfo MSICDSSSERVERADMINMSGPACKINGERRORSEN MSICDSSSERVERADMINMSGPACKINGERROR 0x80043508 0x80043506 const 0x80043602 Messagesh File Mobile Reference Call found property encountered support Microsoft duplicate IDSACTIVITYINVALIDDURATION duration 2147207928 2147207927 unManagedidsactivityinvalidtimeformat uncheckedint0x80043508 02052011 Sinting Code Programmer Dynamics account uncheckedint0x80043509 data Synchronize external with ErrorCodescs 0xe8e3b73e 0xd80d2f19 0xac4653ec 0x3107a3be systems specified 2147207926 unManagedidsactivityinvalidduration password uncheckedint0x8004350a change using unManagedidsactivitydurationdoesnotmatch 05032016 References Software 11026 Source ServerNet connected Sleuthing HRESULTS 0x8004350A 11029 MSICDSSSERVERADMINMSGSENDINGERROR 11030 11028 11027 message packing User object regarding does probably check time IDSACTIVITYINVALIDTIMEFORMAT format 27092011 13577 0x004 MSICDSSSERVERADMINSERVERNETNOTSETSEN IDSACTIVITYINVALIDREGARDINGOBJECT exist FTEESECRETNOTFOUND 13826 0x80040232 VFWENOAUDIOHARDWARE 0xC004D30E VFWENOTALLOWEDTOSAVE 0x80040256 0x80040309 EVENTECANTMODIFYORDELETEUNCONFIGUREDOBJECT 0x80041604 NETEOPERATIONINPROGRESS SLREMAPPINGSPPUBTSFULL win32 0x0004A020 0x80043603 ErrorCode XACTEINDOUBT VDSEINVALIDBLOCKSIZE 0x80042532 0x8004D016 REXSPHEUNKNOWNDATATYPE 0x8004020D FACILITYITF management userdefined designated Interface symbol hresult COMOLE means codes DBENOCOMMAND 0x80040E0C GTHREPRTHNDLRPROGIDMISSING 0x80040D18 SLELICENSENOTBOUND from returned 0xC004F080 methods 0x80043604 0xbdba696f 0x745dd61f 0x3e764300 0xd61c2a2c 0x41a3b394 0xa732ec9c GitHub 0x35816557 0xf34855ec 0x0c01c5bb 0x77b2182e 0x253c2cf4 0x9873b5f8 0xe7efabf0 0xd117b8fd 0xa42dee94 0x0c8e8ea0 0x5f643394 0x5b24e144 acharalmhtransflar 0x80043611 0x80043610 0x80043613 0x80043612 0x80043609 0x80043606 0x80043605 0x80043608 0x80043607 0x80043614 0x8004361D 0x8004361C master mhtransflarhashconsc 0x8004361B 0x80043617 0x80043616 0x8004361A 0x80043618