How to Restore Default Services in Windows 8 and 8.1
This tutorial provides you with registry downloads that will completely restore any of the default services and their settings you want in Windows 8, Windows 8.1,and Windows 8.1 Update. This can be handy if a service was deleted by mistake, is missing, or had it's properties set improperly.
You must be signed in as an administrator to be able to do the steps in this tutorial.
Services are located in the registry location below.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
If you did not delete a default service, then you might consider doing a full scan of your system at boot with a program like Windows Defender Offline to help make sure that your system is clean...