Why did I get error 0x8004049F?
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
> Windows Filesystem
> Internet access
> Windows Update service
> File corruption
> Misconfiguration
> Adware
> Virus and Malware
How to fix Windows Update error 0x8004049F?
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)
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.
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.
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.
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
6. If they are not listet we cannot clean the download path. Othwerwise delete both.
7. Restart your computer.
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
> 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
System Configuration directory const 0x800404A0 public 0x8004049e 0x800404A2">0x800404A1 0x80004001 0x8004049D specified file found using instance managed Cannot create IDSFAILEDCREATEMANAGEDPROXY 0x800404A2 proxy notin C12Adapter between notbetween Opensource Interface MErrorEnum Lemmen Ronald 0x80044153 IDSINVALIDPRINCIPALID 2009 principal missing 0x80044152 modified IDSROLESRESTRICTINHERITED Inherited roles Dynamics 23042010 IDSINVALIDTLSMNGR install operation path available Failed retrieve privileges IDSINVALIDESCAPEDXML Escaped size expected This 0x80040499 C12ServiceResponseISSS 0x8004049A C12ServiceResponseRNO Class Reference 0x80040498 C12ServiceResponseNETT C12ServiceResponseNETR C12ServiceResponseRQTL 0x8004049C C12ServiceResponseSME 0x8004049B C12ServiceResponseUAT Remote devices option under right click 8135 format MITSUBISHI Communication Software ideas drive ghosted would when Forums Possible reasons Discussion Cant Image from Command 2012 Also noticed LabVIEW supported given protocol 05032016 2147220319 unManagedunabletoretrieveprivileges change with external systems uncheckedint0x800404a0 unManagedinvalidprincipal uncheckedint0x8004049e 2147220322 2147220321 2147220320 unManagedproxycreationfailed uncheckedint0x8004049f Synchronize EZNCDATAMDLREGISTWRITEONLY Writeonly EZNCDATAMDLREGISTAXIS readable FCSB1224W000 EZNCDATAMDLREGISTREAD Data Invalid Rethread position ErrorCodescs 0x80040BA3 axis specification EZNCDATARETHREADWRITENODATA