Do you want to upgrade to 1803? Is this the reason you were running DISM?
If that fails let us know
Updating to Windows 10 1803, the latest feature update should resolve your issue.
The fastest way to get the upgrade is through Media creation tool or ISO file.
Please download Media Creation Tool from the link below and select Upgrade this PC at the first screen.
https://go.microsoft.com/fwlink/?LinkId=691209
All steps, including upgrading using ISO file and Media creation tool, are covered here:
http://www.yourwindowsguide.com/2018/04/upgrade...
Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.