When deploying the ConfigMgr client on Windows 8 or 2012 systems, it's possible that remote installation fails. This because off User Account Control (UAC) which cannot be completely disabled. Remote Endpoint Agent installation requires that UAC is disabled on the Endpoint. This can be fixed however with a registry change and service restart. Let's have a look.
Deploy the following rule to Windows 8 or 2012 systems to enable Remote installation:
REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v LocalAccountTokenFilterPolicy /t REG_DWORD /d 1 /f
net stop LanManServer
net start LanManServer
Deploy the following rule to Windows 8 or 2012 systems to disable UAC:
REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
After that Remote installation is enabled and UAC disabled, and deploying the ConfigMgr client from the Management Console will be fine.
Source: Microsoft Support