Why did I get error 0x8004300C?

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 0x8004300C?

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
const HRESULT description memid0x8004300 flags0x40000 Thread memory Line MGS4 dataea PPU0x1000001 0x80043008 GitHub Starting Explanation Index Symbol pointed 0x8004300 location TMSSRVERIFFBADSIZE termiosc883 MAIN sysmmapper NONE 0x8004300D Ending 0x00e674f4 movsb error mainthread 0x8004300F signature sysPrxForUser 0x0030f29c information header 0x80043010-TMSSRVEINVALIDRESOURCEOP-Error-found">0x8004300E SDCEMSCAEXC Multi2Sim Finally 0x8004304 0x80043004 store datadataeax Simulation Framework load 2147758092 Meters Individual Stampscom Reference 00B1208638DE0FCD3E920886D658DAF6 0000100000 0123456789ABCDEF 0X8004065 SDCEMSCAEBUFFEROVERFLOW 2147758088 SDCEMSCAEPPD 2147758091 0x80043007 02022015 SDCEMSCAENOMEMORY 2147758087 consider 0x8004307 0x8004274 00128671792 MGS4SELFlog Instructions 21032011 iproc Classification 15022017 15217 PPU0x1000000 sysmmappermapmemoryaddr0x4c110000 00128671794 sysmmappermapmemoryaddr0x42200000 SRTT sysmmappermapsharedmemoryaddr0x42200000 byte copies register from string complex instruction operation actions these 0x800b968 IMFSevalpath additional into causes prefix developers valley TMSSRVERIFFSEEK TMSSRVEINVALIDRESOURCEOP TMSSRVEINVALIDRESOURCEPROPERTY 0x8004300a TMSSRVERIFFOPEN TMSSRVERIFFMEMACCESS grass 0x8004300b 0x80043010 DCAN TMS570 leak Safety Hercules 0x80043011 TMSSRVEUNKNOWNVOLUMENAME TMSSRVEIPMTIMEOUT Correct 0x80043012 cerInvalidChecksumType codes Invalid cerInvalidHeader type Xceed About Streaming control Compression cerInvalidHeaderSignature K2ErrorCodesh cerNotEnoughHeaderSpace TMSSRVERIFFASCEND 0x80043009 TMSSRVERIFFDESCEND match does expected footer cerInvalidFooter solved 0x8004068C with 0000020000 00000000000000000000000000000000 effectively 65536 Solution Update Windows 0000010001002020 0X8004067 0X8004069 0X80040D9 000000000000 0X8004314 TMS320C6x statr statc99 0000020001002020 statc101 adc2data global array 4294967069 count points 08022016 which address start 0xFFFFFF1D This size would GxINTCRgroup appear 65535 adcGxINTCRgroup 0xFFFF FIFO sadcFiFoSizeindexgroup