If you are not tech savvy and find the Windows Registry Editor daunting then there are tools that can help you navigate through the registry hives and paths. Navigating to keys is pretty cumbersome but these third-party tools facilitate registry edits.
Quite often, Windows services fail to start automatically due to Registry incorrect modifications or even worse, registry corruption. Every service when installed creates a key in the registry under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<Service Name> while a subkey with the name of Start (for Auto-start) is created under the service name. I have encountered many incidents that these subkeys were modified either by a valid third-party application or some malware. Critical system services such as, the Task Scheduler can only have their auto-start state changed from the registry as this is disabled (grayed-out) from the services console. To learn more about Windows services tools visit Managing Services in Windows 7-
It is very difficult to find how and why these subkeys are being modified, hence I decided to code an executable that monitors Services Start registry subkeys and alerts you if one of the keys you have specified has been modified.