Why did I get error KB3126587?

How to fix Windows Update error KB3126587?

As an alternative, if you are technologically savvy, you can try the steps below:
1. Start by clicking the Start button and then type “services.msc” on your keyboard.
2. You should be able to find “services.msc” in your search results. By clicking on it, you will be able to open it.
3. You will be presented with a new window that contains a list of all Windows services available on your computer.
4. In the search box, type “Windows Update”
5. Click “Windows Update” on the right side of the screen and then click the “Stop” button.

Windows Update temporary cache folder, we will do the following:

1. Press and hold the Windows key while hitting the “R” key at the same time.
2. There will be a small new window that will appear on your screen.
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 Windows Services.
2. Locate Windows Update.
3. Right-click on it and choose Start.
It is also recommended that you run the System File Checker (SFC) utility if the problem persists. With this handy in-built tool, you will be able to check the file system of your computer.
1. As soon as you click Start, you will be able to type “cmd” on your keyboard.
2. It should appear with a black icon in your search results when you search for cmd.
3. By right-clicking the file and selecting Run as administrator, you will be able to run it.
4. If you are prompted for the admin password, enter the password and click OK.
5. The new window will be completely black. 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 window and continue working.
Come back to the black window after a while and check if the process finished.
As soon as the SFC process finishes, 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
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.

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