ftroutBrass ContributorApr 13, 2017Setting Google as the default search engine in MS Edge in 1703 using GPO http://ccmexec.com/2017/04/setting-google-as-the-default-search-engine-in-ms-edge-in-1703-using-gpo/
ftroutBrass ContributorSep 22, 2018There was an issue with 1803, try it with the newly released KB4458469. "Addresses an issue that prevents the DefaultSearchProvider policy from working when the FirstRunPage policy is in use."
