Refer to the Reddit thread Windows 10 Search Bar won’t open programs that are not listed as “Trusted Windows Store App where many users have indicated that renaming _cw5n1h2txyewy has fixed the problem of Start menu search results not launching apps when clicked on them.
Resetting the Cortana data folder as in Fix #3 above also fixes a problem where when you search for a program via the Start menu, programs don’t start when launched from Cortana Search results.
Programs can’t be launched from Start Search results Many users have indicated that renaming the Cortana data folder from a 2nd account has resolved the empty & white Cortana search results issue.
NET Framework v2 is required so Windows 8 and 10 users will need to have the. error 0x80073D02: Unable to install because the following apps need to be closed . Fast Empty Folder Finder is a bit newer though and from 2011.