If you need to disable UAC, but want to keep the ability to use built in metro apps, like Edge, you can run this:
cmd /c REG ADD “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System” /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 00000000 /f
cmd /c REG ADD “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System” /v PromptOnSecureDesktop /t REG_DWORD /d 00000000 /f
If you want some specifics on what other things you can modify to tweak the way UAC handles prompts you can view them here: https://msdn.microsoft.com/en-us/library/cc232762.aspx
There are a few more registry settings you can change, but with these two, in Windows 10, you will at least be able to keep metro apps running. If you want to disable UAC entirely in Windows 10 you can run this:
cmd /c REG ADD “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System” /v EnableLUA /t REG_DWORD /d 00000000 /f
This will disable UAC, and kill all metro app usage.