You can copy the reg entries to a reg file and place it under <Cutom\Registry\w10\x64> and then use the [5] Customize -> Import Registry Setting using Registry File menu.
Just copy the original registry file to <Custom\Registry\W10\x64> folder and call the [5] Customize -> Import Registry Settings from Registry File menu.
Which Windows 10 Version are you using? If v1809, removing cortana the search works in Start Menu, Explorer If v1909, removing cortana breaks the search. If v2004, removing cortana the search works in Start Menu, Explorer, the only issue with Start Menu search is the icons aren't displayed properly and only the items present in the start menu are displayed. and also for v2004 if you are using the new CU then you may need to wait for the updated ToolKitHelper.exe for proper component removal.
You can get the Notepad package file from UUP dump site or from the FOD ISO images and then install them using DISM. You can go to File association in Settings->Apps->Default Apps-> - Choose default apps by file type - Choose default apps by file protocol - Set defaults by app
Have added the Deduplication pack for W10 v2004 10.0.19041.1. Check in usual download links, packs folder.
Did you remove "Cortana, StartMenu and Settings Search App" from the "SystemApps Menu" or just "Cortana App" from the "WindowsApps Menu"? Or did you remove both? I am compiling a version, just without the "Cortana App". Then I will be able to test and check if only without the App, but disabling Cortana, this will be resolved.
I doubt that I could be wrong however, a question for you @windows10user is it possible to use "other tools" after using msmg toolkit to slim down even more the iso? @MSMG, a question/request, in the tweeks menu instead of having letters for the tweeks could numbers be used instead? and when the tweek is applied, would it be possible for toolkit to return me to the tweeks menu not the main menu? Majid
I will be testing the new ToolKitHelper also with my 1909 builds. If time allows, I may also try 2004.