I got the same error. I messed up my copy and paste technique. It was pretty easy to fix though. Let me try and explain step by step.
1. Download the .cab file you need for your install,
32-bit(x86) or
64-bit(x64)
2. Create a new folder in C:\. Open file explorer/This PC and click on drive C:. Then move the pointer to the area where files/folders can be clicked to open them. If you can't find an open space where the pointer won't automatically highlight an existing file/folder, then right click and move the pointer slightly away from the highlighted file/folder and right click again. Or if you can find an open space just right click there. This will bring up the panel showing New >. Point to New and click Folder. Name the new folder "folder" for simplicity.
3. Find the .cab file you downloaded and right click on it. Copy it. Then go back to the new folder and paste it there.
4. Then open Command Prompt as administrator. All apps>Windows System>Command Prompt - right click>More>Run as administrator.
5. Then copy and paste the following script(without the
bold part):
For 32-bit: dism /online /add-package:C:\folder\windows10.0-kb3157621-x86_37feb75954eb4477a49ed9dcae2ef179c9ec166f.cab
For 64-bit: dism /online /add-package:C:\folder\windows10.0-kb3157621-x64_0cda29d0ac9c9600a2d2f96775857d8785842ed9.cab
6. Then hit Enter. And be patient. It takes a little while to complete.
7. When prompted to hit Y to restart and finish the update.
8. Once fully completed go back and delete the new folder. It's no longer of any use.