Why did I get error 0x80000CFF?

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 0x80000CFF?

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
Registers 0x80000C00 0x80000B00 0x80000BFF Datasheet Archive 0x80000D00-0x80000CFF-0x80000E00-Archive">0x80000DFF 0x80000D00 UT699 00X0 project AMRANGE0x80000CF8 AMRANGE0x800042E8 0x80000B JCS7 Abstract from 0000000d0 100b OFW01 A3120 SPW4 0x80100000 0x800FF000 0x80000FFF plugplay 0xB00027FF Pegasos FDDRE 0xB0002000 MQFPF352 LEONRTG4EX Solutions CQFP352 AHBSTAT 0x80000F00 Cobham Gaisler supported beboxcpp 0x80000c000x80000cff 0013487 beboxstate AMREADbbslave64ber redumpnet repositories 30012017 Debian Mailing issues mv643xxeth 0x15000x15ff 0013220 Lists 08082013 SPW2 0x800042EF read64be write64be bebox80000480r bebox80000480w systemsbeboxc BeBox pcibusdevice mameap2kbeboxc master Manual SPW3 Aeroflex AMDEVREADWRITEpcibus ramiropollamameap2k GitHub 32bit 0x80000EFF LEON FaultTolerant application note 0x80000E00 Microelectronic Abstrakt pci64bew Processor AMREADWRITE pci64ber 3FTSPARCTM Deutschland Datenblatt Functional