Do to a battery problem when upgrading to Windows 10 I disabled the Appinfo service. The problem I am having now is that I cannot get it re-enabled. I get this message when I try and open regedit, task manager and services to try and fix the problem, "The service cannot be started, either because it is disabled or because it has no enabled devices associated with it." I also got this when I tried installing malwarebytes to run a scan (I don't think it is a virus because this happened as soon as I did the restart after editing appinfo).
My next step was to edit it through command prompt using this line REG add "HKLM\SYSTEM\CurrentControlSet\services\Appinfo" /v Start /t REG_DWORD /d 3 /f to which I get, "ERROR: Access is denied".
At this point what I am asking is if anyone knows how to get permission to edit the registry through command prompt or a way to get something working again to edit it the normal way.
Best Answer
Today I was reminded by a friend that I could probably just boot into safemode(sift+click the restart button on Win10) and re-enable it from there(by going into services and setting it from "disabled" to "manual"), which worked. Although Hysterics suggestion of using a live version of Linux to edit the windows registry would have worked as well.